She swam the butterfly leg on the 400-meter medley relay team, but it was really the breaststroke and freestyle legs that made the difference.是什么意思_She swam the butterfly leg on the 400-meter medley relay team, but it was really the breaststroke and freestyle legs that made the difference.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句