half the battle
US /hæf ðə ˈbætəl/
UK /hæf ðə ˈbætəl/

1.
成功的一半, 事半功倍
a significant part of an effort or struggle, often implying that once this part is achieved, the rest will be easier
:
•
Getting started is half the battle; once you begin, it gets easier.
开始就是成功的一半;一旦你开始,就会变得更容易。
•
Knowing what you want is half the battle when making a big decision.
在做重大决定时,知道自己想要什么就是成功的一半。