英文諺語 If you run after two hares, you will catch neither
If you run after two hares, you will catch neither 同時追兩兔，兩頭都落空
You cannot do two things successfully at the same time; concentrate on one thing at a time or you will achieve nothing. Trying to do two or more things at a time, when even one on its own needs full effort, means that none of them will be accomplished properly.
Kate: If I want to pursue my acting career, I’ll have to take more days off to go to auditions. But I want to get ahead in the office, too.
Bob: If you run after two hares, you will catch neither.
The saying is attributed to Publilius Syrus in the form of Latin proverb “Duos insequens lepores, neulrum cap it”.
同時: at the same time; simultaneously
追: chase after; run after; pursue
兔: hare; rabbit
落空: come to nothing; fail
A bird in the hand is worth two in the bush.
Don’t bite off more than you can chew.
Grasp all, lose all.
Jack of all trades and master of none.