多年来，他对导师形成了深厚的依恋。

He formed a deep ___attachment to his mentor over the years.

她对旧传统的强烈依恋使她难以适应变化。

Her strong ___attachment to the old traditions made it hard for her to adapt to change.

母子之间的情感依恋是不可否认且深刻的。

The emotional ___attachment between the mother and child is undeniable and profound.