1、This grappling hook can only lift one person at a time.
繩槍只能一次承受一個人的重量。

2、The grappling hook can also be used to tether two objects together.
抓鉤還可以用來把兩個物體拴在一起。

3、To search or sweep the bottom body of water, as with a grappling hook or dragnet.
搜尋用抓鉤或拖網(wǎng)在水底進行搜尋或打撈。