mst的翻译，读音
释义：
abbr. （美）山区标准时间（Mountain Standard Time）
n standard time in the 7th time zone west of Greenwich, reckoned at the 105th meridian west; used in the mountain states of the United States
n standard time in the 7th time zone west of Greenwich, reckoned at the 105th meridian west; used in the mountain states of the United States