exuberance

孩子们在游乐场里的活力简直无穷无尽。

The children's ___exuberance at the playground seemed endless.

春天来了，花园里的植物长得异常茂盛。

In spring, the garden shows an amazing ___exuberance of plants.

孩子们在游乐园里奔跑玩耍，充满了活力与欢乐。

The children ran around the playground with boundless ___exuberance.