· A constant guest is never welcome.久住非佳賓，常來不歡迎。
· A common danger causes common action.同仇敵愾。
· A cock is valiant on his own dunghill.夜郎自大。
· A close mouth catches no flies.病從口入，禍從口出。
· A clear fast is better than a dirty breakfast.寧為清貧，不為濁富。
· A clear conscience laughs at false accusations.白日不做虧心事，夜半敲門心不驚。
· A clear conscience is a sure card.光明磊落，勝券在握。
· A clear conscience is a soft pillow.問心無愧，高枕無憂。
· A clean hand wants no washing.身正不怕影子斜。
· A cheerful wife is the joy of life.快樂的妻子是生活的樂事。
· A common danger causes common action.同仇敵愾。
· A cock is valiant on his own dunghill.夜郎自大。
· A close mouth catches no flies.病從口入，禍從口出。
· A clear fast is better than a dirty breakfast.寧為清貧，不為濁富。
· A clear conscience laughs at false accusations.白日不做虧心事，夜半敲門心不驚。
· A clear conscience is a sure card.光明磊落，勝券在握。
· A clear conscience is a soft pillow.問心無愧，高枕無憂。
· A clean hand wants no washing.身正不怕影子斜。
· A cheerful wife is the joy of life.快樂的妻子是生活的樂事。