xǔ duō / wù lǐ xué jiā / rèn wéi / xián lùn / kě néng / tǒng yī / le / guǎng yì xiāng duì lùn / hé / liàng zǐ lì xué许多物理学家认为弦论可能统一了广义相对论和量子力学。Many physicists believe that string theory may unify general relativity and quantum mechanics.