Mach
[ [m?k] ]
其它 Other
n. 馬赫數(shù), 馬赫\\n[計] 機器檢查
?? 牛津釋義
Mach
n[U]
(followed by a number 後接數(shù)詞) ratio of the speed of sth (esp an aircraft) to the speed of sound 馬赫
an aircraft flying at Mach two, ie twice the speed of sound 以兩倍於音速飛行的飛機.
?? 醫(yī)學(xué)釋義
馬赫（音速單位）
??? 情景例句
Where is your family from?
祖籍在哪里？
To navigate
航海
Stories about people often attract far more public attention than political events.
常人軼事往往比政治事件更能引起公眾注意。