This grappling hook can only lift one person at a time.
绳枪只能一次承受一个人的重量。
The grappling hook can also be used to tether two objects together.
抓钩还可以用来把两个物体拴在一起。
To search or sweep the bottom body of water, as with a grappling hook or dragnet.
搜寻用抓钩或拖网在水底进行搜寻或打捞。
Hunters have to get near enough to the edge of the ice to retrieve the narwhal with a grappling hook.
猎人们必须靠近浮冰的边缘，才能用尖利的爪钩捕捉鲸鱼。
But BATMAN does come equipped with a bat hook: a grappling hook that special operators can throw onto power lines in order to charge up their battery-powered communications equipment.
不过蝙蝠侠确实配备了蝙蝠钩：带有特殊器件的挂钩可以扔到电力线路上，这样就可以给他们通信设备的电池充电。
But BATMAN does come equipped with a bat hook: a grappling hook that special operators can throw onto power lines in order to charge up their battery-powered communications equipment.
不过蝙蝠侠确实配备了蝙蝠钩：带有特殊器件的挂钩可以扔到电力线路上，这样就可以给他们通信设备的电池充电。
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