1. From a heavy gun that was raised, the captain realized that the ship must have been a cruiser.
    从捞起的一门大炮来看，船长认为那艘船一定是艘巡洋舰。

2. For Humboldt, the eels raised a welter of questions: "Why didn´t the creature electrocute itself?
    对洪堡来说，电鳗带来了一连串的问题：“为什么电鳗自己不会电死？