bulwark
- n. 壁垒；保障；防波堤
- vt. 保护；筑垒保卫
英英释意
- 1. an embankment built around a space for defensive purposes;
- "they stormed the ramparts of the city"
- "they blew the trumpet and the walls came tumbling down"
- 2. a fence-like structure around a deck
- 3. a protective structure of stone or concrete; extends from shore into the water to prevent a beach from washing away