Etec
[医][=enterotoxic escherichia coli]肠毒素大肠杆菌
🗣️ 情景例句
He's always in and out of jobs.
他老是跳槽。
Don't make rude remarks about their appearances.
不要口无遮拦，批评他们的外表。
and mechanical systems like a wound watch, or the sun,
像上紧发条的手表那样的机械装置，或太阳，