Mmtc
abbr. Minerals and Metals Trading Corporation 矿产和金属贸易公司; Mineral and Metals Trading Corporation of India, Ltd. 印度矿产五金贸易公司; Marine Minerals Technology Center 海洋矿物技术中心（美国矿物局）; maritime mobile telegraphy calling 海上流动电报呼叫
🗣️ 情景例句
She's very talented.
她很有才华。
You may know the horse by his harness.
欲知马如何，可看套马索。
No, thank you.
不要了，谢谢。