run down mill
常見例句
- Subtle effects of run-of-the-mill space storms may also wear down key components in electric power grids, making them liable to early failure.
普通的太空風(fēng)暴次的細(xì)微影響也會磨損電網(wǎng)的關(guān)鍵部分，使它們提早失傚。
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