1.poisonous adj. 有毒的;恶毒的;讨厌的
A lot of poisonous waste water comes from that chemical factory.
那个化工厂排出大量有毒的废水 。
2.mangrove n. 红树林
It is the world's largest tidal mangrove forest.
它是世界上最大的红树林沼泽地 。
3.indication n. 指示,指出;迹象;象征
He gave no indication that he was ready to compromise.
他没有流露出打算妥协的迹象 。