循序渐进

in sequence, step by step (idiom); to make steady progress incrementally

to follow / to adhere to / to abide by

in proper sequence

order / sequence / preface

to imbue

gradual / gradually

progress step by step / gradual progress / to move forward (slowly)

to go forward / to advance / to go in / to enter / to put in / to submit / to take in / to admit / (math.) base of a number system / classifier for sections in a building or residential compound