Fallup
n. 放射性尘埃对海洋地区的污染
🗣️ 情景例句
Summer is vacation time.
夏季是度假的好时机。
What does the test marketing show?
试销说明了什么？
It suddenly dawned on me that this express was not roaring down the line at ninety miles an hour, but barely chugging along at thirty.
我突然感到这趟快车并没以时速90英里的速度呼啸前进，而是卟哧卟哧地向前爬行，时速仅30英里。