I've thought of a better use for you 我想到有个方法，我有其它事让你来做

think of:想到

I couldn't think of the name of that man anyhow.

我怎么也想不出那人的名字来了。

He would never think of letting his daughter marry a fellow like you.

他决不会想到让女儿嫁给像你这样的家伙。

Come along, Samwise Keep up 过来呀，山姆，跟上来!

come along:一道走

Jane come along with her supervisor to the budget meeting.

简同她的管理人一起去参加预算计划会了。

keep up:跟上

Slow down I can't keep up (with you)!

慢点，我跟不上(你)了！