I dropped my toast, but luckily it fell right side up.

　　我把烤面包掉在地上，但幸好它正面朝上。

　　Luckily he had insured himself against long-term illness.

　　幸運的是，他為自己投保了長期病險。

　　Luckily, she saved herself.

　　幸運的是，她救了自己。