A'-dipyridyl a
[医] α,α'-双吡啶
🗣️ 情景例句
He is as poor as a church mouse.
他一贫如洗。
Better be half hanged than ill wed.
与其成怨偶，不如守单身。
At the moment, they cover every inch of floor space and I actually have to walk on them to get in or out of the room.
这会儿，书把地板的每一点空隙都占据了，我实际上是踩着这些书进出房间的。