从实习生到经理，他的职业生涯遵循了一个自然的（晋升）过程。

From intern to manager, his career followed a natural ___progression.

人际关系网络能极大地促进职业发展。

Networking can significantly aid in career ___progression.

早期治疗是阻止疾病恶化的关键。

Early treatment is key to halting the ___progression of the illness.