flotsam

n.(冲上岸或漂浮水面的)船只残骸，碎木，零碎杂物; 废料; 无家可归者; 失业流浪者 牛津词典 noun （冲上岸或漂浮水面的）船只残骸，碎木，零碎杂物；废料parts of boats, pieces of wood or rubbish/garbage, etc. that are found on land near the sea or floating on the sea; any...