You have a photo of your infant holding a joystick at a computer.
你有一张你的小婴儿在电脑前手握游戏杆的照片。
Children play them on computers using a joystick to control the weapons and movements they see on the computer screen.
孩子们在电脑上玩这些游戏，用控制杆控制电脑屏幕上出现的武器和动作。
Studies also show that just like chimpanzees, pigs can also control the joystick in front of a computer screen.
他们在一系列的研究中还发现，猪能够像黑猩猩一样操作计算机屏幕前的操纵杆。
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