Botulin
[微]肉毒杆菌毒素
🗣️ 情景例句
I know the owner very well.
我和老板很熟。
I wrote to my uncle last night.I couldn't put it off any longer.
我昨晚给我的叔叔写了信.我不能再推迟寄信了。
He had been there for nearly ten hours.
他已经在烟囱里被困了将近10个小时。