throw myself into、get the

1. I need some nice, normal school activities to throw myself into.我应该多参加一些常规的校园活动
　　throw oneself into
　　投入...

2. Still haven’t got the hang of it?
　　还没掌握诀窍吗？
　　get the hang of
　　找到...的窍门

3. Give me a minute.Take your time.
　　等我一下。不着急。
　　take your time
　　不慌不忙

4. Speak of the devil.
　　说曹操，曹操到

5. I am lucky just to know someone like her,let alone have her as a friend.
　能认识像她，我真的很幸运了，更别说还能和她成为朋友。
　let alone
　更不用说；不理，不管（惹）