Conicoid
n. 二次曲面
🗣️ 情景例句
We will also need a letter of recommendation.
我们还要求一封推荐函。
Some of our customers have recently expressed interest in your woolen carpets and inquired about their quality and prices.
目前我们的一些客户对你们的纯毛地毯颇有兴趣，并询问其质量和价格。
It's green.
是绿色的。