改变

China has changed greatly over the past few decades.

undergo a complete transformation

change beyond recognition; change out of all recognition

My experience in the countryside completely transformed me.

The ship was forced to shift its course.

History is unalterable.

change one's image

change/alter one's mind; switch off to another line of thought

alter/change a habit

change the course of history

change sides; shift one's ground/position; alter one's stand; reverse oneself

change one's tone

get a decision reversed; change one's decision

change the mental outlook

change the subject; shunt the conversation on to a new topic

shift the style of work

change direction

change/alter one's attitude (towards)

change one's opinion (of); alter one's view (on)

alter phraseology