reef
UK/ri:f/US
TOEFLB1
Definitions
n.
A ridge of rock, sand, or coral lying at or near the surface of the water; a strip of sail that can be rolled up to reduce its area
礁石，暗礁；缩帆部分
v.
To roll up part of a sail to reduce its area in strong wind
缩帆，卷起部分帆
Root Breakdown
Native Englishreefother
=reef
Common Collocations
- 1.coral reef珊瑚礁
- 2.reef system礁石系统
- 3.barrier reef堡礁
- 4.reef knot平结（方结）
Example Sentences
- 1.
The Great Barrier Reef is the world's largest coral reef system.
- 2.
The ship ran aground on a hidden reef just outside the harbor.
- 3.
The sailors took in a reef as the storm winds began to strengthen.