One can tell the difference almost at a glance for a spider always has eight legs and an insect never more than six.
One can tell the difference almost at a glance for a spider always has eight legs and an insect never more than six.
人们几乎一眼就能道出两者之间的差异，因为蜘蛛总是八条腿，而昆虫的腿从不超过六条。