behave in a manner appropriate to your age
自分の年齢にふさわしい行動をする (jibun no nenrei ni fusawashii kodo o suru)
"Stop being so childish and act your age!"
"そんな子供っぽいことをやめて、年相応に振る舞いなさい！" (sonna kodomoppoi koto o yamete toshisoo ni furumainasai)
to describe something vividly or clearly
everything; the entire effort
to start an argument intentionally
to take a subordinate role to someone else
Work becomes easier when many people help.
to experience pressure or criticism
