Birr
動力, 活力, 精力, 作呼呼聲, 呼呼(聲中)移動
??? 情景例句
OK. Let's have a look at it.
好，讓我們來看看。
What's done by night appears by day.
若要人不知，除非己莫為。
And if, with the decay of vitality, weariness increases,
再者，隨著精力的衰退，老年人的疲憊感會增長，