详细解释:n. 暗礁, 礁, 缩帆
vt. 缩(帆)
vi. 缩(帆)
词型变化：
形容词:reefy动词过去式:reefed过去分词:reefed现在分词:reefing第三人称单数:reefs英语解释：
名词 reef:
a submerged ridge of rock or coral near the surface of the watera rocky region in the southern Transvaal in northeastern South Africa; contains rich gold deposits and coal and manganese同义词：Witwatersrand, Rand