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
Let me show you this.
我给你看看这个。
By writing you learn to write.
从写作中学写作。
Is there any water in this kettle?
这水壶里有水吗？