Even though he did something wrong ,don;t betoo___on him.he is a child

hard on 对...刻薄
例句与用法:
He ran ahead,with the others hard on his heels.
他在前面跑,其他人紧随其后.
She hit/struck him hard on the face.
她用力地打他耳光.
His death followed hard on hers.
他在她死后不久也死了.
Don't come down too hard on her.
不要太严厉地申斥她.
He sat down hard on the suggestion.
他强烈反对这项建议.
The new law is a bit hard on those who were born abroad.
新法令对那些在国外出生的人有点不够公平.
Don't be too hard on her she's very young.
别对她太严了－－她还小呢.