reef

US /rif/

UK /ri:f/

B2 中高級英檢高級
n. (c./u.)名詞 (可數/不可數)暗礁;礁
The captain was careful to avoid hitting the reef so that his ship would not sink
n. (c./u.)名詞 (可數/不可數)縮帆布
The sailors tied down the reef before docking the sailboat
v.t.及物動詞縮(帆)
Because of the high winds, we should reef the sails so that they don't get damaged

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