Àn / wù / zhì / shì / yǔ / zhòu / zhōng / yī / zhǒng / bù / fā / guāng / 、 / bù / yǔ / diàn / cí / bō / fā / shēng / xiāng / hù / zuò / yòng / de / shén / mì / wù / zhì / 。

暗物质是宇宙中一种不发光、不与电磁波发生相互作用的神秘物质。

Dark matter is a mysterious substance in the universe that does not emit light and does not interact with electromagnetic waves.