曼哥，秋MM，翻譯詩詞容易，翻譯意境很難。我隻能試試，請斧正。

假如，你是隻小魚/If you are the little fish
我願做那海草一片翠綠/I’ll surround you with tenderness, like green seaweed
在遼闊無邊的海域/In this endless sea
戲嘻/play with you
呼吸/breathe with you

假如，暴風雨來襲/The storm is coming
也許那是你傷心的淚滴/Perhaps that is your tears， with sadness

 我不會離你而去/Never leaving you alone
深深潛入海底/ I’ll go a thousand miles deep
永遠相伴相依/Forever, standing by your side