Cbrn
abbr. chemical; biological; radiological and nuclear 化学; 生物
🗣️ 情景例句
To help scrub the building interior clean.
帮忙把建筑的内部擦洗干 。
In fifty years there'll be twenty people per square yard, it is written here.
这里写着，再过五十年每平方码将要住着20人的人口密度。
Yes, very hard. Years of hard work, very little food, only a small cold room to live in and never a moment's rest.
是的，境况很不好。多年劳累，食不果腹，斗室寒舍，从无休息。