Pentadiene
戊二烯
🗣️ 情景例句
I can believe that. One good thing about ping pong is that it doesn't need much space.
我几乎不敢相信。乒乓球最大的好处是不占地方。
Suit the action to the word.
怎么说就怎么做。
you're likely to get five different answers, --
你很可能得到5种不同的答复，