Tight money:

緊的錢 ×

來(lái)之不易的錢，辛苦賺來(lái)的錢 √

例句：

This tight money. Go easy on it. It's hard to get.

這可是血汗錢吶，要節(jié)省著點(diǎn)用。賺錢不容易。

Throw money at something:

扔錢到某事 ×

大筆花錢以求解決某事 √

例句：

Don't just throw money at it.

在那件事上，別光大筆花錢。

Push money:

推錢 ×

 (給推銷員的)傭金 √

例句：

I got about $300 last month in push money for selling some low-grade sweaters.

上個(gè)月推銷次等針織套衫，我拿到了三百美元左右的傭金。