I have no idea what they're going to say, so I'll have to play it by ear.
我一点不知道他们将会说些什么,所以我只好见机行事。
One can tell the difference almost at a glance, for a spider always has eight legs and insect never more than six.
人们几乎一眼就能看出二者的差异,因为蜘蛛都是8条腿,而昆虫的腿从不超过6条。