任凭其自由发展而不干涉to let things take their course

• 对重点之外的工作通常会先放一放，甚至是任其自然。

  Non-key tasks will often be laid to one side, or even left to take their course.

• 她从不用任何香水掩盖，任其自然。

  She does not cover it up with any perfume, just letting things take their natural course.