An idle youth,a needy age.少壮不努力，老大徒伤悲。

​A rotten apple 害群之马

​There is no sure formula for success. 成功无定法。 ​

Birds of a feather flock together. 物以类聚，人以群分

too entrenched to dislodge 牢不可破

turf occupied by ……(占据了)的空间

red tape 繁文缛节

make/grab (the) headlines 使…成为头条，即宣扬…

(not) worth their salt 形容某人是个(不)值得信赖的、做事能力(弱)强的人

take it with a pinch of salt 对某件事情(it)将信将疑(可用被动语态)

Life is transient. 人生苦短

exponential increase 指数级增长

obscure corner of 不起眼的角落(被忽略的部分)

in/out of the saddle 在位/落马

put icing on the cake 锦上添花

talent scout 人才侦探，星探

Search me. 我不知道

like a moth to the flame 如同火焰之于飞蛾(形容诱惑力大)

by leaps and bounds 十分迅速

break even 收支平衡

not to put too fine a point on it 实话实说，不客气地说

History rewards the bold. 勇气可嘉

In hot water= in trouble

embark on (doing) sth 着手做

A dwarf B B被A超越

Two roads diverged in a wood, and I- I took the one less traveled by, And that has made all the difference. —— Robert Frost

A pain in neck 讨厌的人或事情