Akrit
钴铬钨工具合金, 钴铬钨系刀具用铸造 合金, 特硬耐磨合金
🗣️ 情景例句
No. This is my first visit.
没有。这是第一次。
If you expect to enter the university,you should apply now.
如果你期望进入大学，你现在应该申请。
Fortunately, a pilot saw the signal and sent a message by radio to the nearest town.
幸运得很，一位飞行员看到这个信号，用无线电给最近的城镇发了报。