需要: 1.(应该有或必须有) need; want; require; demand; do with 短语和例子需要立即采取行动 require immediate action; 她需要休息。 she is in need of a rest. 我们需要一个和平的国际环境。 we want [need] a peaceful international environment
他们: they 短语和例子他们的 their; theirs; 他们学校 their school; 他们自己 themselves; 他们会弹钢琴。 they can play the piano. 我们常向他们请教。 we often ask them for advice
