TOP 10 COMMON IDIOMS：

a hot potato 烫手山芋

Meaning: a controversial issue or situation that is awkward or unpleasant to deal with.

Example: The subject of bullying and fighting in my school is a hot potato.

在我的学校，欺凌和打架是一个棘手的问题。

piece of cake 小菜一碟

Meaning: something that is easy to do

Example: Learning English is a piece of cake as long as you do it with our website.

学英语是小菜一碟，只要你用我们的网站就行。

once in a blue moon 千载难逢

Meaning: very rarely

Example: I go to visit my grandfather only once in a blue moon; he lives in a remote farm house.

我难得来看我爷爷一次;他住在一个偏远的农舍里。

a bed of roses 尽如人意

Meaning: easy option

Example: Taking care of my younger sister is no bed of roses; she is very silly.

照顾我妹妹并不轻松;她很傻。

raining cats and dogs 倾盆大雨

Meaning: raining very heavily

Example: I wanted to go to play outside, but it was raining cats and dogs yesterday.

我想去外面玩，但是昨天下着倾盆大雨。

when pigs fly 绝不可能

Meaning: something that will never happen or is impossible.

Example: William will keep quiet only when pigs fly.

devil's advocate 唱反调

Meaning: one who presents a counter argument

Example: Hey Jack! You're always playing devil's advocate! Give it a rest and mind your own business.

嘿,杰克!你总是唱反调!休息一下，管好你自己的事吧。

miss the boat 错失良机

Meaning: miss the chance.

Example: Peter wanted to enter the drawing competition, but he was too late to enter, and he missed the boat.

彼得想参加绘画比赛，但太晚了，他错过了机会。

apple of eye 掌上明珠

Meaning: someone very precious or dear

Example: Every kid in the world is the apple of their parents' eye(s).

每个孩子都是父母的掌上明珠。

zip your lip 闭嘴

Meaning: to stop talking

Example: I don't want to hear another sound out of you. Now do as you're told and zip your lip.

我不想再听到你的声音。现在照我说的做，闭上你的嘴。