1. 堤礁：堤防石块 cyclopean stone | 堤礁 shoal reef | 滴痕 drip impression
2. 浅滩礁：shelf reef陆架礁 | shoal reef浅滩礁 | skid-free防滑的
3. 浅滩礁,堤礁：浅滩 shoal patch | 浅滩礁,堤礁 shoal reef | 震动,地震 shock
1. The Chinese coal carrier ran aground the shoal last Saturday afternoon and stuck to the reef since then.