Erucin
芥酸精, 甘油三芥酸脂
🗣️ 情景例句
That's where our difficulty lies.
那就是困难所在。
A good horse oft needs a good spur.
好马常需好靴刺。
I wrote: Best wishes for Teachers' Day!
我写道：“谨致以教师节的良好祝愿！”