A'-dipyridyl a
[医] α,α'-双吡啶
🗣️ 情景例句
During that time
在那一小时
She never mends her clothes; they all have holes in them.
她从来都不补缀衣服。因此，衣服上到处都是破洞。
Just for entertainment.
只是为了消遣一下。