Streptococcus varians
[医] 易变链球菌
🧩 词语组成解析
n. 链球菌\\n[医] 链球菌属
🗣️ 情景例句
The costs of college get higher every year.
学费逐年增加，越来越贵。
Ouch! That hurts.
好痛呦！会受伤哩！
They may also have used wood and skins, but these have rotted away.
他们也可能用过木头和兽皮，但这类东西早已腐烂殆尽。