Etec
[医][=enterotoxic escherichia coli]肠毒素大肠杆菌
🗣️ 情景例句
The more natural it will become.
它们就会变得越自然。
Jeff was not pleased with his school grades.
杰夫不满意自己在学校的成绩。
I'd like to do some shopping, but not during the day.
我愿意买些东西，但不必白天去。