be no (或 nobody's) fool

be a shrewd or prudent person

并不傻，精明

a fool and his money are soon parted

(proverb)a foolish person spends money carelessly and will soon be penniless

(諺)蠢人不積財

fools rush in where angels fear to tread

(proverb)people without good sense or judgement will have no hesitation in tackling a situation that even the wisest would avoid

(諺)智者三思之事蠢人急不可待

make a fool of

trick or deceive (someone) so that they look foolish

愚弄，欺騙（某人）

more fool ——

used as an exclamation indicating that a specified person is unwise to behave in such a way

（某人那樣做）真傻

if suckers will actually pay to do the work, more fool them.

如果有笨蛋愿花錢做那種事，那真是傻透了！。

play (或 act) the fool

behave in a playful or silly way

扮丑角，逗人笑；做傻瓜，干蠢事

there's no fool like an old fool

(proverb)the foolish behaviour of an older person seems especially foolish as they are expected to think and act more sensibly than a younger one

(諺)老人做的蠢事最愚蠢

you could have fooled me!

used to express cynicism or doubt about an assertion

你別騙我啦！（對別人說法表示嘲諷或懷疑）

‘Fun, was it? Well, you could have fooled me!’.

“有趣，是嗎？得了，別騙我啦！”。

fool around 【非正式用語】

To engage in idle or casual activity; putter

干一些無聊或隨便的事；懶散地工作

was fooling around with some figures in hopes of balancing the budget.

懶散地算著數字，希望能平衡開支

To engage in frivolous activity; make fun.

做輕浮的事；開玩笑

To engage in casual, often promiscuous sexual acts.

濫交：從事隨意，常是亂搞性行為

fool away

To waste (time or money) foolishly; squander

愚蠢地浪費（時間或錢）；揮霍

fooled away the week's pay on Friday night.

周五晚上花掉了整個星期的工資

play the fool 或 act the fool

To act in an irresponsible or foolish manner.

出丑：以愚蠢而不負責任的表現

To behave in a playful or comical manner.

以滑稽，玩笑的方式行動