When you see the writhing sequined mass of a bait ball, meaning a school of fish that swims tightly in a globe, you know they will be picked off by whatever larger thing has caused them to swim so close together.
当你看到一团扭动着亮片的诱饵球时,这意味着一群鱼在一个球体中紧密地游动,你就知道它们会被任何更大的东西导致它们游得如此之近而被捕获。