Rats can't vomit or burp because of a limiting wall between their two stomachs and their inability to control the diaphragm muscles needed for the action.
老鼠不能反胃或打嗝，因为它们受到了两个胃之间隔离墙的限制，它们也不能有效调节横隔膜肌肉的活动。
2
Constraints take control away from you: by dictating, by forcing you to think and work a certain way, by limiting your options.
通过指引，通过强迫你用特定的方式思考和工作，通过限制你的选择，约束夺走你的控制权。
3
An enterprise typically disables this preference for two reasons: to control the source of updates for their users or to improve performance by limiting the search scope.