behave in a manner appropriate to your age
表现出与你年龄相符的行为 (biaoxian chu yu ni nianling xiangfu de xingwei)
"Stop being so childish and act your age!"
"别那么幼稚,要表现得符合你的年龄!" (bie name youzhi yao biaoxian de fuhe ni de nianling)
to ignore a problem hoping it will go away
To create emotional barriers or distance from others.
to meet expected standards
to act in an honest and open manner
When too many people try to manage something, it can fail.
do whatever makes you happy or interested