🗣️ 情景例句
Do we have to pre-book tours, or can we get them on site?
我们必须预定行程， 还是到那个地方再说？
Karl must concentrate on his work.
卡尔必须集中精力于自己的工作。
No, I need to talk to the home office.
不，我得先跟总公司谈谈。