抓住绳子，别松手！

Hold onto the rope and don't ___let ___go!

我松开了羽毛，它飘落到了地上。

I ___let ___go of the feather and it floated to the ground.

孩子不肯松开他妈妈的手。

The child refused to ___let ___go of his mother's hand.