Pentabromoethane
五溴乙烷
🗣️ 情景例句
Hello, how are you doing today?
你好， 今天怎么样？
I have a sweet tooth.
我喜欢吃甜食。
2% for prompt payment, net in thirty days.
立即付款的话可以有九八扣，三十天内付款需付全额。