eg. I’ll have to check out his book.
我已经在他的书中检验合格。

eg. Check out the worst one of the bunch.
从这一群人中找出最糟的一个。

eg. The guest must check out of the room before midnight.
那位客人必须于零点之前结帐离开房间。

2. 当被问及如何付账时，你可以付现金就用“pay in cash”，

也可以刷卡用“pay in credit card”，

还可以使用公司账户，如本文中“pay on company's account”。

3. 立即，马上的多种表达：

1) right away

eg. I'll start the paperwork for your order right away.
好啊，那我立刻就为你们的订单作准备了。

2) immediately

eg. Morale perked up immediately at the good news.
听到这个好消息，士气立刻振作起来。

3) at once

You'd better encash your motorcycle at once.
你最好马上卖掉摩托车换成现款。

4) promptly

eg. I will deal with it promptly and fairly.
我将迅速和公平地予以处理。

5) off hand

eg. I can't answer your question off hand.
我不能立即答复你的问题。