懈怠者 the apathetic

不懈努力 Unremitting efforts ; make unremitting efforts ; tireless efforts ; Their tireless efforts

坚持不懈 Perseverance ; Persistence ; persevere

松懈 Slacken ; take it easy ; relaxed ; loose

懈怠 Slack ; sluggish ; laches ; delay

无懈可击 Impeccable ; Dead Solid Perfect ; RESISTANCE

坚持不懈的 persistent ; insistent ; indefatigable ; persistent efforts

松懈懒惰 slack ; sluggish

不懈追求完美 The relentless pursuit of perfection