Hexafluoride
n. 六氟化物
🗣️ 情景例句
Are you a Republican, or a Democrat?
你是共和党人还是民主党人？
One enemy can do more hurt than ten friends can do good.
十个朋友做的好事抵不上一个敌人造成的危害。
Every day he leaves his home and walks to the lift.
每天他离家后就步行去乘电梯。