Diphenylethylene
1, 2-二苯乙烯
🗣️ 情景例句
Why do you plan to leave the present job?
你为什么打算离开现在的工作？
An old dog will learn no new tricks.
老家夥学不出新名堂。
Did you leave it in water before you washed it?
在洗它之前您是不是把它泡在水里了？