Biphenylamine
联苯胺
🗣️ 情景例句
the first settlers in America.
他们是第一批来美国定居的移民。
Little children have the most fun playing make-believe.
儿童很喜欢幻想的游戏。
I can set up a tour next week.
我可以安排在下个礼拜参观。