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
净: Ⅰ形容词1.(清洁; 干净) clean 短语和例子擦净 wipe sth. clean; 窗明几净 with bright windows and clean tables; bright and clean; 净水 clean water; 这件褂子没洗净。this jacket hasn't been properly washed.2.(净尽;没有剩余) empty
