1．(2018·北京卷) To confirm that the worms' chewing alone was not responsible for the polyethylene breakdown，the researchers made some worms into paste (糊状物) and applied it to plastic films.vt.涂，抹，敷
2．(2017·全国卷Ⅰ) There has been a recent trend in the food service industry toward lower fat content and less salt.n.含量
