Hexadiene
[机] 己二烯
🗣️ 情景例句
Thank you. The address is No.44 Changning Road.
谢谢你，地址是长宁路19号。
Generally speaking, a contract cannot be changed after it has been signed by both parties.
一般来讲，合同一经双方签订就不得更改。
The guest who arrives half an hour too soon is the greatest nuisance.
客人提前半小时到达是令人讨厌的。