Tetrandrous
a. [植]具四雄蕊的
🗣️ 情景例句
Oh no! Is it serious?
噢， 糟糕， 严重吗？
The voice is not distinct.
声音不清楚。
This would solve the problem of ventilation, for if a train entered this tunnel, it would draw in fresh air behind it.
因为如果有列火车开进隧道，它就把新鲜空气随之抽进了隧道。