Bipyramidal
双锥体
🗣️ 情景例句
At least we are not the only ones facing these problems.
至少不光是我们面临这样的问题。
San Diego. I got back yesterday.
圣地亚哥，我昨天才回来。
What about you? Where do you live?
你呢？你住在哪儿呢？