后顾之忧的英文：
[Literal Meaning]
rear/look back/aux./worry
fear of disturbance in the rear

[解释]
来自后方的忧虑。

[Explanation]
trouble back at home

[例子]
把孩子交给爷爷奶奶照顾以后，他就没有了后顾之忧，可以全心投入到工作中去了。

[Example]
After entrusting his kid to the grandparents, he had no fear of disturbance in the rear and could throw himself into his work completely.

Cares at home, family considerations that cause delay in decision
后顾之忧

No trouble Back at home
没有后顾之忧

There was no need for him to worry about the "home front" any longer.
他没有后顾之忧了！

They can teach with one heart and one mind now that they have left the worries behind.
他们能一心一意教学而没有后顾之忧。