污水中的营养物确实会加快港口的海藻生长。Sewage nutrients do increase algal growth in the harbour.上游的城市将污水排放到河里。Cities upstream use the river to get rid of sewage.黏稠的棕黑色污水在尸体周围流动着，非常恶心。The water moved darkly around the body, unpleasantly thi...
Ninety per cent of lone parent families are headed by mothers.90%的单亲家庭由母亲持家。a lone sailor crossing the Atlantic独自横渡大西洋的人A lone sea gull flew across the sky.一只孤独的海鸥在空中飞过....