When a torrent sweeps a man against a boulder, you must expect him to scream, and you need not be surprised if the scream is sometimes a theory.
当激流把一个人冲到一块大石头上时，你必须期待他会尖叫，如果尖叫有时只是一种理论，你也不必感到惊讶。
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Scream
Theory
Sweeps
Expect