画地为牢的英文：
[Literal Meaning]
draw/ground/as/prison
to draw a circle on the ground as a prison

[解释]
把人的活动限制在一定范围内。

[Explanation]
to restrict somebody's activities to a designated area or sphere

[例子]
我们都不要画地为牢，让思路更广阔一些会有意想不到的收获的。

[Example]
We shall not restrict our activities to a designated area. If we broaden our minds we may obtain something unexpected.