Lbf
[计] 对话前监听\\n[医] 保加利亚乳杆菌生长因素
🗣️ 情景例句
and he doesn't know anything
而他毫无所知
Did you go camping this morning?
你今早去露营了吗？
I'm sorry I don't know. You'd better ask that policeman over there.
对不起，我不知道。你最好问问那边的警察。