Germ theory
[医] 病菌学说
🧩 词语组成解析
🗣️ 情景例句
She's unhappy
她很不高兴。
Every shoe fits not every foot.
不能以己度人。
A week before, he had completed a successful overland flight during which he covered twenty-six miles.
一周以前，他曾成功地进行了一次26英里的陆上飞行。