vt.收帆，缩帆（reef的过去式与过去分词形式）； 双语释义：n.(名词)[C]礁，暗礁 a line of sharp rocks,often made of coral,or a bank of sand on or near the surface of the sea英英释义： reef[ ri:f ]n.a submerged ridge of rock or coral near the surface of the watera rocky region in the southern T