reefs
名词 reef:
a submerged ridge of rock or coral near the surface of the water
同义词:reef
a rocky region in the southern Transvaal in northeastern South Africa; contains rich gold deposits and coal and manganese
同义词:Witwatersrand, Rand, Reef
动词 reef:
lower and bring partially inboard
同义词:reef
roll up (a portion of a sail) in order to reduce its area
同义词:reef
reduce (a sail) by taking in a reef
同义词:reef