成语

变本加厉

exaggerate

再接再厉

to continue to put in effort

一步登天

rapid advancement (negative connotation)

占上风

to get the upper hand

欢天喜地

bouncless joy

呆若木鸡

dumbstruck

结结巴巴

to stutter

理直气壮

boldly and confidently

不知所云

don't understand

神采飞扬

in high spirits

风云人物

influential figure

耳目一新

find everything fresh and new

如释重负

feel a sense of relief

分文不取

Not to take a penny

嘀嘀咕咕

鸦雀无声

in full silence

无缘无故

for no reason

皆大欢喜

to the satisfaction of all

废寝忘食

to forget to eat or sleep

欲言又止

want to say sth then hesitate

掌上明珠

apple of the eye

罪魁祸首

the main criminal

慢条斯理

unhurriedly

不知如何是好

don't know what to do

坚持不懈

to persevere

开卷有益=

reading has meaning

以礼待人

treat people politely

一帆风顺

疏解压力

relieve pressure

学识渊博

learn widely/knowledgeable

不耻下问

never hesitate to ask a lesser person.

学无止尽

knowledge is infinite

调剂身心

to provide physical and mental relaxation

总而言之

all in all

受益无穷

unlimited benefits

无法无天

lawless

无所畏惧

fearless

无忧无虑

carefree and without worries

沟通的有效

communication methods

弄巧反拙

counterproductive

钻牛角尖

to waste time on an insignificant problem/stubborn

硬着头皮

do sth reluctantly

东窗事发

to be exposed ; to come to light

根深蒂固

deep-rooted

孤掌难鸣

difficult to achieve anything without support

各有千秋

each has specialised skills

改邪归正

to give up evil and return to good

奉公守法

law-abiding

改过自新

turn over a new leaf

进退维谷

dilemma

防患未然

take precautions against a calamity

金玉良言

invaluable advice, pearls of wisdom

废寝忘食

to neglect to eat and sleep

金科玉律

the golden rule; precious info

发人深省

thought-provoking

见义勇为

never hesitate to do what is right

家喻户晓

widely known

发扬光大

develop and enhance

耳濡目染

influenced by what one frequently sees and hears

诲人不倦

be patient and never tired of teaching

对症不药

take remedial steps to correct a shortcomin

画蛇添足

adding too much will spoil it

东山在起

stage a comeback

花言巧语

sweet talk

寡不敌众

outnumbered

胡作非为

engage in lawless activities

光明正大

just and honorable

狐假虎威

to use powerful connections to intimidate people

害群之马

One who brings disgrace upon his group

好逸恶劳

Love leisure and hate labour

海底捞针

make vain effort