aそれは…だが；(…する)ように《◆which 【代】4bより堅い語》‖Her feet were bare, as [which] was the custom in those days. 彼女は素足だったが, それは当時の習慣であった/We had completely misjudged the situation, as we later discovered. われわれはその事態の判断を完全に誤っていたが, そのことは後になってわかったことだった/As was so often the case after snow had ceased to fall, everything could be seen with a preternatural clarity. 雪の降り止んだあとではよくあることだが, あらゆるものが不思議なくらい澄みきって見えた.