Polysilsesquioxane
[化] 聚倍半硅氧烷
🗣️ 情景例句
Tomorrow morning at ten o'clock. Try it.
明早上午十点。来试一试吧。
How long will it take for a letter to get to California?
你把信寄到加州要多长时间？
Is this your umbrella?
这把伞是您的吗？