Make yourself useful讓你有用起來的意思。

例句：

Make yourself useful, ok? Go clean the garage

你能不能不閑著，把車庫打掃一下。

I visit my friend and she’s cooking dinner for me. So I ask her, “Well Leez, can I make myself useful?”

我去朋友家，她做飯給我吃，于是我問她：“我能幫上什么忙嗎？”

更多例句：

1. Don't stand about doing nothing-make yourself useful!
別閑呆著-做點有用的事！

2. "Stop daydreaming, wake up, stand up, and go out make yourself useful."
"別再做白日夢，醒過來，站起來，走出去，做個有用的人。"

3. Don't just sit there watching television—make yourself useful. Come and help us move these tables.
別只是光坐著看電視，讓你自己有點作用。過來幫我們搬那些桌子。