https://www.youtube.com/watch?v=oqCCcfKRt6k 2:13 he's definitely at fault. このスチュワードが明らかに悪い。
参考リンク
http://bridge-english.blogspot.jp/2013/12/blog-post_22.html 信仰心の薄い者よ
練習問題解答
b-4493 at fault
b-4558 not at fault
b-4680 at fault
b-8040 not been found at fault
