事半功倍的英文：
[Literal Meaning]
do/half/efficiency/multiply
to get twice the result with half the effort
[解釋]
指做事有方，因而費力小，收效大。
[Explanation]
to work effectively and efficiently
[例子]
因為我們的預算非常緊張，只能用很少的資金完成這個專案，所以一定要做到事半功倍。
[Example]
Our budget is very tight and only a small amount of funds will be invested into this project, so we must work effectively and efficiently.
參考例句：
Everything must be carefully examined before we act, then twice the result can be accomplished with half the effort.
事情要考慮周詳以後再動手，才能夠事半功倍。
