Dihydroxyphthalophenone
酚酞
🗣️ 情景例句
For a year or two
在一两年内
Please sign a copy of our Sales Contract No.156 enclosed here in duplicate and return to us for our file.
请会签第156号销售合同一式两份中的一份，将它寄回我方存档。
The children wake up very early, and can't wait to open the presents in their stockings.
孩子们醒得很早，迫不及待地打开袜子里的礼物。