Mass infection
[医] 大量感染
🧩 词语组成解析
mass
[mæs]
n. 大量，大多;块，堆，团;[物理学]质量;弥撒曲;
vt.& vi. （使）集中，聚集;
adj. 群众的;大规模的;整个的;集中的;
vi. 聚集起来;
vt. 使集合;
infection
[in'fekʃən]
n. <医>传染，感染;传染病，染毒物;影响;
🗣️ 情景例句
We were all sorry when we heard that your brother had had an accident.
我对你弟弟的意外感到遗憾。
The leopard cannot change its spots.
江山易改，本性难移。
Thirteen.
13岁。