Opportunistic infection
机会感染
🧩 词语组成解析
a. 机会主义的, 投机取巧的
infection
[in'fekʃən]
n. <医>传染，感染;传染病，染毒物;影响;
🗣️ 情景例句
Floors one to eight are the elevators to the left.
一到八楼上下使用的电梯在左边。
It's fine once you get used to it.
习惯就好！
Tom and Mary congratulated us on the birth of our daughter.
汤姆和玛丽为我们女儿的出生向我们表示祝贺。