Pig heart valves are currently implanted into humans, but Yancy says that an entire heart could prove to be too much for the body to tolerate.是什么意思_Pig heart valves are currently implanted into humans, but Yancy says that an entire heart could prove to be too much for the body to tolerate.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句