蜘蛛必须等待猎物被它的蛛网困住。The spider must wait for prey to be ensnared on its web.大蟒蛇紧紧盘绕猎物使之无法呼吸,从而杀死猎物。Pythons kill by tightening their coils so that their victim cannot breathe.猎人潜行追踪猎物。The hunters stalked their prey....
The old man moved away, raising his hand in salutation.老人一边举手致意一边走远了。Jackson nodded a salutation.杰克逊点头打招呼。When he saw the principal, he raised his hand in salutation.他看到校长时举手敬礼....