Thm
abbr. 重矿物总量（Total Heavy Minerals）
🗣️ 情景例句
I find it amazing that you can't swim.
你不会游泳可真使我大吃一惊。
Did you go play ball last night?
你昨晚去玩球了吗？
We seem to be three packages short.
好像少了三大箱。