Dialkylene
二烯基
🗣️ 情景例句
The speed limit here is 60 miles an hour.
这儿限速为每小时六十英里。
I want to apologize.Is there anything I can do?
我要道歉。我能想点什么办法吗？
Yes. The No.72 bus will take you there.
有。72路公共汽车会把你带到那儿。