Tufftride
(氰化钾盐浴)扩散渗氮, 软氮化
🗣️ 情景例句
What a pity! We have another party that day.
太可惜了，我们那天也有个聚会。
What's so funny?
什么事那么好笑？
How are you getting there? By train?
你准备怎样走？坐火车去吗？