zhèng
cháng
1
regular
2
normal
3
ordinary
我们已经检查了所有机器,一切正常
We already inspected all the machines, everything is normal.
狗在正常情况下是不会咬人的。
In normal circumstances dogs will not bite people.
放心,吃药后胃口不好是正常的。
Don't worry, it's normal to lose your appetite after taking medicine.