A large proportion of the dolphins in that area will eventually die

　　那片區(qū)域里的很大一部分海豚終將死去。

　　Whales and dolphins are still being slaughtered for commercial gain.

　　仍然有人為了商業(yè)利益大肆捕殺鯨魚和海豚。

　　Dolphins sometimes play in the wake of the boats.

　　有時海豚在船的尾流中嬉戲。

　　Dolphins have sometimes been known to save drowning swimmers.

　　據(jù)悉海豚有時會救溺水的游泳者。

　　Marine biologists are calling for Cardigan Bay to be created a marine nature reserve to protect the dolphins.

　　海洋生物學家號召將卡迪根灣建成一個海洋自然保護區(qū)，以保護那里的海豚。