柯林斯词典gulfweed /ˈɡʌlfˌwiːd/ 1. N any brown seaweed of the genus Sargassum, esp S. bacciferum, having air bladders and forming dense floating masses in tropical Atlantic waters, esp the Gulf Stream (果囊)馬尾藻 (Also called sargasso, sargasso weed) 返回 gulf weed