Diaminoethane
[机] 乙二氨
🗣️ 情景例句
She majored in math and physics at university.
她在大学里主修数学和物理。
I give you an inch, and you take a yard.
你太得寸进尺了。
Then the bees left the hive and went to the feeding place.
然后那些蜜蜂离开蜂箱，飞到喂食点去。