Lactan
[医] 内酰胺, 酯(音涓)
🗣️ 情景例句
They are not personal or private.
并不是私人的问题。
Billy, get off the doggie's tail.
比利，得扰人处且饶人，放他一马吧。
Some children were playing games on the bank and there were some people rowing on the river.
河岸上有些孩子正在玩耍，河面上有些人正在划船。