Prevention of epidemics
[法] 防疫, 预防瘟疫
🧩 词语组成解析
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
epidemics
[[ˌepi'demiks]]
n. 流行病；时疫；蔓延（epidemic的复数）
🗣️ 情景例句
Keep it down!
小点儿声！
To teeter-totter
玩跷跷板
It's Jim. He's in that tree. He can't get down. Can you help him?
是吉姆，他在树上，下不来了，你能帮他吗？