Bementite
蜡硅锰矿
🗣️ 情景例句
The Post Office aims to improve its quality of service.
邮局锐意改善服务质量。
A man is known by the company he keeps.
察其友知其人。
The only other people who knew the secret were Joe and Bob.
除此之外，只有乔与鲍知道这个秘密。