Sources of infection
[医] 传染源
🧩 词语组成解析
n. 输入源；发起者；来源（source的复数）
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];
infection
[in'fekʃən]
n. <医>传染，感染;传染病，染毒物;影响;
🗣️ 情景例句
The cost of housing's too high for you here.
这里的房子对你们来说太贵了。
All of my paycheck disappears so quickly.
我的薪水在不旋踵之间都消失无踪了。
No matter how many guests were present, the great house was always immaculate.
不管去多少宾客，大房子里总是收拾得干干净净。