Mach number
[化] 马赫数
🧩 词语组成解析
Mach
[[mæk]]
n. 马赫数, 马赫\\n[计] 机器检查
🗣️ 情景例句
She is sleeping here so she won't have to travel from Riverdale in the morning.
她晚上住在这儿，免得早上从Riverdale赶过来。
Life is half spent before we know what it is.
等到认识人生，已经一半过去了。
Paw prints were seen in a number of places and puma fur was found clinging to bushes.
在许多地方看见爪印，灌木丛中发现了粘在上面的美洲狮毛。