boulder fall
常見例句
- Slope failures including landslide and boulder fall occur every year in Hong Kong during the rainy season on man- made slopes.
香港城區(qū)的人造斜坡上每年雨季都要發(fā)生滑坡、落石等地質(zhì)災(zāi)害，危及市民的生命財産安全。 - Given political and economic tensions, however, one wonders if these efforts, however commendable, face the same task as Sisyphus, the tragic figure of ancient Greek myth—rolling an immense boulder up a hill, watching it fall down and repeating the action for eternity as punishment for his transgressions.
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