Ambrac
阿莫布拉克铜镍锌合金
🗣️ 情景例句
Outstanding work.
做得太棒了。
Perhaps not so.
也许不这样。
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。