Someday he'll run out and I'll start tracking him again.等他现金花光之后我会继续查他的信用卡

run out:用尽；耗尽

It looks as if oil will run out faster than coal.

石油似乎要比煤炭耗尽得快。

Three days ago he switched to cash.三天前他改用现金支付了

switch to:转变

Shall we switch to another channel?

我们换个频道好吗？

Let's switch to some other topic.

我们换个话题吧。

I'll need a bit more... encouragement.我需要一些额外的...奖励

a bit more:稍多的

Let the broth simmer down a bit more.

让肉汤炖得再久一些吧。

Can I give you a piece of professional advice?让我给你点专业意见吧

a piece of:一张(片； 块； ... )

Please pass me a piece of paper handkerchief.

请递给我一张纸巾。