Vazo
偶氮二异丁腈
🗣️ 情景例句
Thank you. It's delicious.
谢谢，味道很好。
We tried in vain to make him change his mind.
我们试图使他改变他的主意，但白费力气。
Mrs.Richards sent her children to school and went upstairs to her bedroom.
把孩子送去上学，然后来到楼上自己的卧室。