In my relativity theory i set up a clock at every point in space, but in reality i find it difficult to provide even one clock in my room.是什么意思_In my relativity theory i set up a clock at every point in space, but in reality i find it difficult to provide even one clock in my room.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句