Ethanthiol
己二硫醇
🗣️ 情景例句
I'd like to buy some stamps for this letter.
我想买这封信的邮票。
He that has no children knows not what is love.
没有孩子的人，不懂什么叫爱。
The house was dirty. They hadn't cleaned it for weeks.
房子很脏，他们好几个星期没打扫了。