1.The researchers added that children up to the age of 17 or 18 remain adept at learning grammar.
adept at 熟練于
They also need to be adept at collaborating with colleagues outside of IT.
他們還需要擅長與信息技術部門之外的同事合作 。
2.It's not really something that you can make up later.
make up 彌補
They'll do all they can to make up the economic losses.
他們要盡一切力量彌補這些經濟損失 。