1. 砂洲：sand recycle system ==> 砂子循环系统 | sand reef ==> 砂洲 | sand removal ==> 冲砂
2. 沙洲：sand quality 砂粒质量 | sand reef 沙洲 | sand reel 捞砂滚筒
3. 沙洲,砂坝,砂礁：砂舌 sand lobe | 砂管 sand pipe | 沙洲,砂坝,砂礁 sand reef
1. Sand Tiger sharks have killed at least 40 smaller reef sharks and been aggressive towards divers working on final preparations in the giant tank.