a lot of後加什麼詞

例句：

I am spending a lot of money and time on this boat, but it is worth it

我在這艘船上花了很多金錢和時間，但都很值得。

I have lost a lot of weight

我體重減了不少。

Is there a lot of effort and money going into this sort of research?

這種研究目前是否有大量的人力和資金投入？

I think a lot of people still underestimate him

我覺得很多人仍然低估了他。

You've caused us a lot of trouble

你給我們造成了很多麻煩。

A lot of this has to do with power and greed.

凡此種種都和權力與貪慾有關。