Diphenylethene
[化] 二苯乙烯
🗣️ 情景例句
He had an emergency.
他有紧急事情。
I was born and raised in Beijing, and I am 25 years old.
我出生在北京，在那里长大，我今年25岁了。
He investigates complaints large and small that come to him from all levels of society.
他听取社会各阶层的各种大小意见，并进行调查。