Which box or boxes should you grab off the conveyor belt?

那你应该从传送带取下来哪个或哪几个箱子？

The predators will catch the weaker ones, the laggards, they will grab off individuals in the periphery of the group.

掠食者会捕捉体弱和落在后面的，它们会从兽群边缘抢走个体。