Baby boys do not seem to notice the difference in the size of the ball, but girls immediately becomeexcited and begin to make noises that sound like language.
男婴似乎没有注意到球的大小的不同,但女婴立即变得兴奋,并开始发出听起来像是语言的声音。
3
According to entomologists, single locusts are quiet creatures, but when locusts are placed with others of their species, they becomeexcited, change color, vibrate, and even hum.