Backteriological warfare
[法] 细菌战
🧩 词语组成解析
🗣️ 情景例句
She keeps all of her jewelry and valuables in a safe.
她把所有的首饰和贵重物品都放在保险柜里。
Has he studied French very long?
他学习法语很长时间吗？
Cheer up!
振作起来！