Henceforth, I will remember the lesson of the firefly that gives of its light only when it is on the wing, only when it is in action.是什么意思_Henceforth, I will remember the lesson of the firefly that gives of its light only when it is on the wing, only when it is in action.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句