Pentaene
[化] 五烯
🗣️ 情景例句
How are you?
好吗？
Nothing is as good as it seems beforehand.
期待比现实更美好。
On the day before our departure, several bus loads of tourists descended on the town.
我们离开小镇的前一天，镇上来了几辆满载游客的公共汽车。