群策群力的英文：
[Literal Meaning]
mass/plan/mass/effort
to pool the wisdom and efforts of everyone

[解释]
群：大家，集体；策：谋划，主意。发挥集体的作用，一起来想办法，贡献力量。

[Explanation]
to work with collective wisdom and concerted efforts

[例子]
抗洪的任务只要群策群力，任何困难我们都会克服的。

[Example]
Fighting against the flood requires us to work with collective wisdom and concerted efforts, by which we will overcome any difficulties.