Go easy on someone/ something 手下留情;温和对待;节约使用
Go easy on him, he is my friend. 对他手下留情啊,他是我朋友。
The doctor told me to go easy on the chilies, but I just can’t.医生要我少吃辣椒,但是我做不到啊。
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by the book 完全按照规章制度办事,按照规定,照章办事
go by the book 依章办事
play by the book按规定来
do something by the book按规定做某事
run something by the book 按规定管理、运营
The manager do...