In Spanish, the expression "to know by heart" is translated to "saber de memoria" ("to know from memory"). By itself, the difference in translation might seem arbitrary. However, among some European languages there seems to be a divide, where in some of them perfectly knowing something is solely associated with the memory, and in others it's associated both with the memory and the heart.

French, Catalonian and English, for example, fit the second group (Savoir par cœur/de mémoire, saber de cor/de memòria, to know by heart/from memory). Meanwhile, Italian and Spanish belong to the first group (sapere a memoria, saber de memoria).

Russian is the only exception to the languages I'm familiar with: the expression "знать на память" ("to know from memory") exists, but more often you'll hear "знать наизусть", which seems to be a calque of the Ancient Greek "ἀπὸ στόματος" ("from the mouth", уста being the old/poetic version of рот, губа). Not sure what the mouth has to do with knowing something, but it is an interesting turn of this expression!

Heute ist Mittwoch und ich hatte eine Präsentation. It war nicht schwer. Unser Lehrer ist Amerikaner. Er ist sehr nett und locker.

Die Klasse war um 8 Uhr. Ich bin sehr müde. Ich hasse Frühaufstehen. Ich bin nicht Frühaufsteher. Ich bin eine Nachteule.

Schwer - difficult

Locker - chill, lenient

Frühaufstehen - getting up early

-> compound noun." Früh (early) + aufstehen (to get up).

The popular term "piano in the bushes" is not russian but, in fact, Ukrainian.

"Its origins take place from a comedy sketch ("Completely All of a Sudden") by Arkadiy Arkanov and Hryhoriy Horin that was aimed against the typical TV cliches of the time.

In this sketch, a TV reporter decides to interview a "totally random person from the street," who "unexpectedly" turns out to be a connoisseur of many crafts and arts and a virtuoso of violin and piano.

To prove his skill, the "random man" decides to play the violin he carried with him "on a whim." When asked to show his piano mastery, the man told the journalist: "Oh look, somebody left a grand piano in the bushes, what luck!"

This line quickly caught on in the soviet union media and became a poster phrase to describe such obviously fabricated "impromptus."

Basically, finding a piano in the bushes when you want to prove your piano skills to a street reporter is just as likely as seeing a person suddenly burst out in a well-rehearsed song with random bystanders accompanying him in a dance."

In modern days, it's often used by writers in a meaning of "convenient plot device". You can often meet it in sentences like, "the hero masters the next piano that has arrived."

Although this phraseologism is very popular among russians, it's not inherently russian.

Arkadiy "Arkanov" Shteinbok was a Jewish Ukrainian, born in Kyiv. His father was from Bila Tserkva, Ukraine, mother - from Zhytomyr, Ukraine.

Hryhoriy "Horin" Ofshtein also was a Jewish Ukrainian. His father was from Volochynsk, Ukraine, mother - from Sharhorod, Vinnytsya region, Ukraine.

Ich will unbedingt deutsch lernen aber ich habe nicht genug Zeit und Energie. Ich bin Universität studentin und ich habe auch eine Arbeit. Ich bin müde und gestresst oft. Ich versuche im Sommer Deutsch lernen. :)

unbedingt -- absolutely/at all costs

Vienatvė

When someone pisses you off:

Tu fais chier = you're pissing me off

Vas te faire foutre = piss/fuck off, literally: Go make yourself cum

Nique ta mère = Go fuck your mother (used with the example of mother here, but you can put others, usually femal family members, and I don't use it cuz i love my mother so ha)

When you're dissapointed:

Je suis dégouté = I am disgusted (this one can be used the normal way, but in slang and with the right context, it means you're dissapointed as fuck. The "dégouté'' can also be shortened to "dég")

J'ai le seum = I have a grudge (this is full slang, and it doesn't have a double meaning "avoir le seum" just means you're dissapointed)

When something bad happens to your friend:

Force à toi = strength for you

J'aurais pas aimer = I wouldn't have loved (it)

Ché = Basically saying : Tough luck haha, you deserve it not the nicest thing to say though it's friendly, so be sure to be close to the person and depending on what happened to them. Also idk how to spell it but it's basically pronounced "Ch-eh" if that makes sense

When you agree/you're ok with it:

Je suis chaud = I'm hot (basically saying I'm down)

Vas-y = Let's go (along with it)

C'est cool = It's cool

When someone tells you something obvious:

Naaaan, jure?? = Noooo, (you) swear?? *sarcastically obviously*

Jure = swear

T'es sure?? = You're sure?? *also sarcastic*

Nan, je savais pas = No, I didn't know *still sarcasm*

like SWEAT PANTS. YOU. SWEAT. IN. THEM.