Nitralloy
氮化合金; 渗氮合金
🗣️ 情景例句
About three weeks. We'll have enough time for our talks.
大约三个礼拜，我们有足够的时间交谈了。
Do you want to remit the money by air mail or by cable, sir?
您想要航空信还是电汇，先生？
Letters will cost a little more, but they will certainly travel faster.
这样会稍微多花点钱，但肯定是快得多了。