The idea for the experiment came from observing the birds using tools to pickat random objects, such as a picture of a spider that was printed on some cloth.
这个实验的想法来自于观察鸟类使用工具随机挑选物体，比如在一些布上印有蜘蛛的图片。
2
There is no need to pickat him all day long. He's a child after all.
不要老是对他唠唠叨叨， 他毕竟还是个孩子嘛!
《新英汉大辞典》
3
Fish pickat the urchins, which feed on bits of algae.