1. 海堤：growth form生长型 | groyne海堤 | guard cell保卫细胞

2. 防波堤：growth 生长 | groyne 防波堤 | grub on 做苦工

3. groyne

3. 防沙堤：growth 生长 | groyne 防沙堤 | GRP liferaft 玻璃钢救生筏

4. 护岸：笏石英 sceptre-quartz | 护岸 groyne | 护岸 revet-crag

1. a protective structure of stone or concrete
    extends from shore into the water to prevent a beach from washing away

    Synonym: breakwatergroinmolebulwarkseawalljetty