Mrt
abbr. 平均辐射温度（mean radiant temperature）；大规模快运系统（Mass Rapid Transit）；平均滞留时间（mean residence time）
🗣️ 情景例句
clip it around under your collar.
将它夹在领子下方。
The times of comradeship in sports and play are full of meaning.
这个通过运动或游戏培养友情的时代，是极有意义的。
If the feeding place was away from the sun, the straight part of the wagging dance pointed downward.
如果喂食地点向着太阳，跳舞的蜜蜂在跳摇摆舞时直线部分就一直向上。