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reef的一般过去时为：reefed...
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reef的第三人称单数（三单）为：reefs...
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n.礁，暗礁，[矿]矿脉，[航]缩帆部，榫帆部vt.收帆，缩帆...
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reef的音标：reef的英式发音音标为：[ri:f]reef的美式发音音标为：[rif]...
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reef的复数形式为：reefs...
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A coral reef is built by the accretion of tiny, identical organisms.珊瑚礁是由许多相同的微生物不断堆积而成。the multifarious life forms in the coral reef珊瑚礁上的多种生命形式Waves mountain - high broke over the reef.滔天巨浪盖过礁石....
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reef的现在进行时为：reefing...
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The ship was wrecked on a coral reef.这条船在珊瑚暗礁上撞毁了。Photo Gallery : Marine Marvels A freckle - face blenny peeks from its reef burrow in the Solomon Islands.海洋的奇迹图片.一条雀斑面孔的粘鱼在窥视从它的暗礁洞穴位于所罗门群岛.The large number of barrier re...