without a murmur
一言の不平も言わずに
without a scratch
かすり傷ひとつ負わずに
without a stop
止まらずに,絶えず
without a wink of the eyelid
まばたき一つせずに
without any difficulty
何の困難もなしに(with no difficulty).
without bias and without favor
公平無私に
without breaking (one's) stride
つかえずに
without breaking (a) sweat
汗ひとつかかずに(楽々と)
without ceremony
簡素[無造作]に;ぶしつけに
without challenge
こちらから何もしないのに