Ultracrystalline
超微晶
🗣️ 情景例句
Could you tell me a little about your background?
能否请您简短地谈一下贵公司的背景？
It seems like I always have bills to pay and he never has any!
我看来好像老是有账单，然而他却完全没有。
What are you doing?
你在干什么？