You see, the existence of a natural speed limit for the motion of any object, or the sending of any signal, makes simultaneity in our ordinary sense of the word lose its meaning.是什么意思_You see, the existence of a natural speed limit for the motion of any object, or the sending of any signal, makes simultaneity in our ordinary sense of the word lose its meaning.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句