to preserve a youthful appearance
- giữ được trẻ lâu: to keep the bone green
- giữ được vẻ nghiêm trang: to preserve one's gravity
- giữ trẻ: Mind children, work in a kindergartenLàm nghề giữ trẻTo mind children for a living; to be a baby-minder; to work in a kindergarten