nǐ jiào shénme míngzi?
What's your name?
我是俄罗斯人。
I'm Russian
This is 'wo' (我) meaning 'I', 'shi' (是) meaning 'to be', 'Eluosi' (俄罗斯) meaning 'Russia', and 'ren' (人) meaning 'person' or 'people', together forming 'Russian person'.
我是俄罗斯人。
wǒ shì Éluósī rén
I am Russian. — Standard way to state nationality.
我来自俄罗斯。
wǒ láizì Éluósī
I come from Russia. — More conversational alternative.
我是俄国人。
wǒ shì Éguó rén
I am Russian. — Shorter, more colloquial variant using 俄国.
你好!你是谁?
Nǐ hǎo! Nǐ shì shéi?
Hello! Who are you?
我是俄罗斯人。
Wǒ shì Éluósī rén.
I am Russian.
很高兴认识你!
Hěn gāoxìng rènshì nǐ!
Nice to meet you!
Appropriate
Avoid when
You say "我是俄罗斯人" (wǒ shì Éluósī rén). It literally means "I am a Russian person."
It is pronounced "wǒ shì Éluósī rén". The tones are: wǒ (3rd tone), shì (4th tone), É (2nd tone), luó (2nd tone), sī (1st tone), rén (2nd tone).
Use it when introducing your nationality, especially in response to questions like "你是哪国人?" (What country are you from?). It is appropriate in most situations.
Tomyo
Remember 我是俄罗斯人。 and hundreds of other phrases with smart reviews, audio and examples.