Polyhalide
多卤化物
🗣️ 情景例句
If you're under twenty-one years of age ...
如果你还不到二十一岁……
The boy is shot.
那个男孩遭到了枪击。
Gradually the river grows wider, the banks recede,
然后河面渐渐地变宽，两岸后撤，