reef

B1 大学 FREQ #9319 ★☆☆☆☆

n. 暗礁, 礁, 缩帆 v. 缩(帆)

发音

US /ɹiːf/
AU /ɹiːf/

词形变化

reefs 复数 reefed reefing reefs 三单 reefs reefing 现在分词 reefed 过去式 reefed 过去分词 reefer 比较级 reefest more reef 比较级 reefest 最高级 most reef 最高级

别名

riff reif rief

教材释义与例句

动词

收帆；缩帆

动词

缩帆；收帆

释义与例句

n. B1
  1. 1.

    A chain or range of rocks, sand, or coral lying at or near the surface of the water.

    礁

    暗礁

  2. 2.

    A large vein of auriferous quartz; hence, any body of rock yielding valuable ore.

    澳大利亚 南非
  3. 1.

    A portion of a sail rolled and tied down to lessen the area exposed in a high wind.

    航海 交通
  4. 2.

    A reef knot.

  5. 1.

    The itch; any eruptive skin disorder.

  6. 2.

    Dandruff.

v.
  1. 1.

    To take in part of a sail in order to adapt the size of the sail to the force of the wind.

    航海 交通

    1970 July–December, Margaret Quilty, Roller Reefing Made Easy, Boating, page 63, Be sure the blocks are securely mounted—they carry a fairish load when the sail is reefed. If both reefing line and main halyard are led to the cockpit, even singlehanded reefing is a breeze.

  2. 2.

    To pull or yank strongly, especially in relation to horse riding.

    澳大利亚
  3. 3.

    To move the floats of a paddle wheel toward its center so that they will not dip so deeply.

    航海 交通

    Reef the paddles.

  4. 4.

    To manipulate the lining of a person's pocket in order to steal the contents unnoticed.

    俚语

    This was done by "reefing." He put two fingers just inside the opening and lifted the lining a trifle. Although I watched his hands, I could feel nothing, so gently did his fingers work. Reefing a couple of times, he lifted my handkerchief, as he might have taken out anything else.

adj.
  1. 1.

    Scabby; scurvy.

词汇关系

名词

上位词 3

slip strip ridge

下位词 1

coral reef

整体词 4

sail sheet canvas canvass
动词

上位词 9

lower shrink reduce bring down let down take down furl get down roll up

相关短语

coral reef n. 珊瑚礁 reef rash reef rashes reef knot [医] 帆结, 反结 reef triggerfish reef break reef knots reef point reef line reef and beef reef crab reef crabs reef breaks reef lines

词源

From earlier riff, from Middle English rif, from Old Norse rif (“rib, reef”), from Proto-Germanic *ribją (“rib, reef”), from Proto-Indo-European *h₁rebʰ- (“arch, ceiling, cover”). Dutch rif (“reef”), Low German riff, reff (“reef”), German Riff (“reef, ledge”) are also borrowed from Old Norse. Doublet of rib.

来源：wiktionary