Halimide
[化] 氯化对十二烷基苄三甲铵
🗣️ 情景例句
And my friend Alexandra is going back to Greece ...
我的朋友Alexandra就要回希腊去了……
Henry got a toothache and asked to be excused.
亨利牙疼，请求离开一下。
The search proved difficult, for the puma was often observed at one place in the morning and at another place twenty miles away in the evening.
事实上搜寻工作很困难，因为常常是早晨在甲地发现那只美洲狮，晚上却在20英里外的乙地发现它的踪迹。