You can't shake hands with a clenched fist.
紧握拳头你就无法与他人握手。
If you want to shake hands with others, just hold out your hand first.
If you clench your fist, then thost who want to shake hands with you may give up.
The days you work are the best days.
努力的日子就是最美好的日子。
I always feel my life is just a mess and I always feel empty and depressing.
That just shows I didn't work hard engough.
Do I remember I had felt excited when I solved the problems?
If I want to find back the same feeling, I must work hard.