欢迎光临！

Huānyíng guānglín!

Welcome!

老师说欢迎各位学生发问。

Lǎoshī shuō huānyíng gèwèi xuéshēng fāwèn.

The teacher said that students were welcome to ask questions.

欢迎你来美国。

Huānyíng nǐ lái Měiguó.

Welcome to the United States.