Dibenzphenanthrene
二苯并菲
🗣️ 情景例句
I'm just happy that we're able to talk about it.
我很高兴我们能够一起商讨这件事。
The work shows the workman.
什么匠人出什么活。
He put a glass dish with sugar water and honey to the west of the hive. A marked bee fed itself from the dish and returned to the hive.
他在蜂箱的西面放一个装有糖水和蜜蜂的玻璃碟子。