Colitoxin
大腸桿菌毒素
??? 情景例句
And it is in fact more advantageous than others.
而且比其他人的價格都優惠得多。
It is a small flock that has not a black sheep.
家家難免有敗類。
The only person I know who has a skeleton in the cupboard is George Carlton,
我所認識的唯一的在柜中藏骷嶁的人便是喬治?？栴D，