界: 名词1.(相交的地方; 划分的界限) boundary 短语和例子国界 the boundary of a country; national boundary; 山西和陕西以黄河为界。 the boundary between shanxi and shaanxi is the huanghe river.2.(一定的范围) scope; extent 短语和例子外界 e
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
