Smr
abbr. standard mortality rate 标准死亡率; somnolent metabolic rate 睡眠状态代谢速率; senior maintenance rating 高级维护征收额; specialized mobile radio 专用移动无线（通信）
🗣️ 情景例句
We'll call in a couple of days.
我们两三天后打电话。
It doesn't make any sense!
毫无意义！
There is space for summer picnics, open-air concerts, plays and games.
这儿有空旷的地方，供作夏日野餐、露天音乐会、各种娱乐和竞赛之用。