Smr
abbr. standard mortality rate 標準死亡率; somnolent metabolic rate 睡眠狀態代謝速率; senior maintenance rating 高級維護征收額; specialized mobile radio 專用移動無線（通信）
??? 情景例句
That can't be!
不可能！
How much is a one-way ticket to Beijing?
一張到北京的單程票要多少錢？
On Reading
論閱讀