Scramjet
n. 超音速燃烧冲压喷气发动机
🗣️ 情景例句
You work hard on all your committees,
而你总是在各种委员会里忙，
Riff raff!
痞子！
for the monotonous rhythm of the wheels clicking on the rails soon lulls you to sleep.
车轮与铁轨间单调的嘎喳声很快就会送你进入梦乡。