1. for a purpose: 為了……目的

eg. The only ture happiness comes from squandering ourselves for a purpose.
唯一的真正幸福來自堅持不懈地朝著目標前進。

2. now that: 既然

eg. Now that he'd come to the door, he thought he might as well go in with the others to have a look.
他想， 既然來到了門口，莫如跟著進去看看。

3. ask out: 請(某人)外出

eg. In the following few weeks, he continued to ask me out on several occasions.
在接下來的幾周，他繼續屢次邀請我外出。

4. invite in: 請（某人）進入（房間、房屋等）

eg. Don't invite him in, he's a dangerous man.
別請他到家里來，他是個危險的人。

5. in the middle of something: 正在忙（這里指收拾房間）

eg. Maybe we wake up in the middle of night wondering if we should have kept them away from the cats.
也許我們會半夜驚醒，想到或許應該讓孩子不要接觸家里的寵物貓。

6. be ready to: 準備好……

eg. So if you come, be ready to dance.
因此，如果你來到這兒，就準備好起舞吧。