人们常常在生活中追求幸福。

People often ___strive for happiness in their lives.

我们的团队不断努力改进服务。

Our team constantly ___strives to improve our service.

即使面对逆境，他也勇敢地努力实现目标。

He ___strives valiantly to achieve his goals, even in the face of adversity.