If he's not at home, he must still be at work. 如果他不在家,就一定还在办公室。
She's currently at work on a new book. 她目前正在写一本新书。
I found it fascinating to watch the staff at work. 我发现看员工们干活儿很有趣。
You don't know what forces are at work behind the scenes. 你不知道幕后是什么势力在起作用。
👨🏻🏫 Mr. Ng 麥美倫詞典 📚 – macmillan.mister5️⃣.net切換為繁體中文