Someone indefatigable does not give up, and they do not seem to get tired of trying. It is a praise word, and a rather grand one. You might call a campaigner, a night-shift nurse, or a stubborn researcher indefatigable.

Someone indefatigable does not give upindefatigable的人不會放棄 and they do not seem to get tired of trying而且看起來永遠不會厭倦嘗試 It is a praise word這是個讚美的詞 and a rather grand one而且相當隆重 You might call a campaigner, a night-shift nurse, or a stubborn researcher indefatigable你可能會說一位社運人士、值大夜班的護理師，或固執的研究者indefatigable

Though actually, almost nobody says this at the dinner table. “Tireless” and “they never give up” are the everyday versions. Indefatigable sounds like a speech, a prize citation, or an old novel.

Though actually, almost nobody says this at the dinner table不過實際上，餐桌上幾乎沒有人會這樣說 'Tireless' and 'they never give up' are the everyday versions「tireless」和「他們從不放棄」才是日常的說法 Indefatigable sounds like a speech, a prize citation, or an old novelindefatigable聽起來像演講稿、頒獎詞，或一本老小說

It describes spirit more than muscle: you can be physically exhausted and still indefatigable in the work. The British navy even named a ship HMS Indefatigable — they meant it as a compliment.

It describes spirit more than muscle它形容的是意志，不是體力 you can be physically exhausted and still indefatigable in the work你可以身體累壞了，工作上卻還是indefatigable The British navy even named a ship HMS Indefatigable英國海軍甚至把一艘船命名為HMS Indefatigable — they meant it as a compliment——他們是把這當成讚美

Do not use it for a person who is merely busy. Busy is a calendar. Indefatigable is a will that does not run out.

Do not use it for a person who is merely busy不要拿它形容只是很忙的人 Busy is a calendarbusy說的是行程表 Indefatigable is a will that does not run outindefatigable說的是用不完的意志力