Fortunately, 10 years after Unruh proposed his sonic analogy, one of us (Jacobson) came up with a very useful simplification.是什么意思_Fortunately, 10 years after Unruh proposed his sonic analogy, one of us (Jacobson) came up with a very useful simplification.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句