| 单词 | reef |
| 释义 | reef n part of the top or bottom of a sail that can be rolled or folded to reduce the area exposed to the wind 缩帆部, 叠帆部（帆的顶部或底部可卷起或摺起的部分）. reef, v [Tn] reduce the area of (a sail) by drawing in a reef or reefs 卷起或摺起（缩帆部）. reef n ridge of rock, shingle, sand, etc at or near the surface of the sea 礁; 礁脉 The ship was wrecked on a coral reef. 那艘船触珊瑚礁失事. |
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