适者生存
the survival of the fittest
穷寇莫追
A cornered animal is a dangerous foe.
积少成多
Every little makes a mickle. (Every little helps.)
脍炙人口
in everyone’s mouth
钱可通神
Money can move even the gods.
谋事在人成事在天
Man proposes and God disposes.
学无捷径
There is no royal road/shortcut to learning.
机不可失
Opportunity seldo knocks twice.
优胜劣败
The weakest goes to the wall.
声东击西
to look one way and row another
词汇解析：
shortcut：捷径，近路，抄近路，走捷径。【例句】①We saved time by taking a shortcut.我们走捷径以节省时间。②He was always looking for a shortcut to fame and fortune.他总是在找成名发财的捷径。