Lactam
n. [化] 内酰胺, 乳胺
🗣️ 情景例句
and photograph street performances in the city,
拍摄城市 的街头表演，
I have no idea what they're going to say, so I'll have to play it by ear.
我一点不知道他们将会说些什么，所以我只好见机行事。
She did not even look up when I took my seat beside her.
当我在她身旁坐下来的时候，她甚至连头都没有抬一下。