Pentone
缬烯炔, 异戊烯炔
🗣️ 情景例句
Advertising, bills, bills, advertising.
广告 ，帐单 ，帐单 ，广告。
I changed my mind.
我改变主意了。
I'll get another one now, said her mother.Don't worry.
“我这就再去拿一支，”她妈妈说，“别担心。”