1 main

2 principal

3 major

4 primary

1 leading role

2 lead

1 theme

2 subject

1 to restore

2 to renovate

3 restoration

4 (computing) to fix (a bug)

1 princess

1 lit. If the upper beam is not straight, the lower beam will be crooked (idiom); fig. subordinates imitate their superiors' vices

1 not care about one's appearance (idiom)

2 slovenly in dress and manner

1 can't help; involuntarily (idiom)

1 to cultivate the heart and nurture the character (idiom); to improve oneself by meditation

1 biased

2 prejudiced (idiom)