Erucic
acid 【化学】芥(子)酸
🗣️ 情景例句
When you feel your life is threatened, just dial 999 to get help.
当你的生命受到威胁的时候，拨打 999 求救。
I expected it to be sweet.
我原以为是甜的。
It rather surprised me.
那事使我颇感惊讶。