プログレッシブ和英中辞典(第３版)の解説
さいわい【幸い】
1 〔幸せ〕
- 折り返しお返事をいただければ幸いです
「I hope that you will be able to [It would be very helpful if you could] give me a prompt reply. - お役に立てば幸いです
I'll be glad [happy] if I can be of (some) service to you.
2 〔都合のよいこと〕
- 幸い (に) けが人はなかった
Fortunately no one was injured. - 私が訪ねたとき幸い彼は在宅だった
Luckily he was at home when I called on him. - 幸い (に) 彼に会うことができた
I had the good fortune to meet [see] him. - 彼が動揺したのを幸いにスマッシュを決めた
Taking advantage of his confusion, I smashed the ball past him for a point. - 天候が幸いして美しい富士山を眺めることができた
Favored [Blessed] with good weather, we had a lovely view of Mt. Fuji. - 世の中は何が幸いするか分からない
In this world you never know what may 「turn out to your advantage [prove to be helpful].