单词：hollow vortex
hollow vortex的用法和样例：
例句
- It is shown that the continued hail shooting process is caused by a cold vortex.结果表明，这次连续性大范围冰雹天气过程是由冷性低涡影响产生的。
- Video shows a shot without the flash and shows the vortex shooting up.影片的一个镜头，没有闪光灯，并显示了涡拍摄到了。
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实用英语
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英文摇滚歌曲