Thiaindan
苯并二氢噻吩
🗣️ 情景例句
OK, Marilyn.
好了， Marilyn
Do you usually do arithmetic on Sunday?
你通常在星期日做算术吗？
Perhaps you've heard our product's name. Would you like to know more about it?
也许你已听说过我们产品的名称，你想知道更多一点吗？