Dimethylpolysiloxane
二甲聚硅氧烷
🗣️ 情景例句
Grandma's pearls!
祖母的珍珠项！
Do you think you'll be able to go to sleep right away?
你认为你将马上入睡吗？
This is a major achievement because, in relative terms, planets are very small and old not emit light.
这是一个重要的成就，因为相对来说，行星很小，而且也不发光。