Sugar is the destroyer of healthy teeth.

　　糖可以危害健全的牙齒。

　　Congratulations, you have a healthy baby girl.

　　恭喜你，有個(gè)健康的千金寶寶！

　　Frozen fish is a very healthy convenience food.

　　凍魚(yú)是一種非常健康的方便食品。