Dialkene
二烯烃
🗣️ 情景例句
I can't answer that one.
我回答不出那个问题。
The price of this model of cassette-player is 2500 Belgian francs at today's rate of exchange.
这个型号的录音机，按今天汇率，每台2500比利时法郎。
Well done, everyone, and congratulations to the winners.
你们个个表现出色，我谨向获胜者表示祝贺。