Biradial
a. [生]两侧辐射对称的,双重对称的
🗣️ 情景例句
This is Susan with Jiaotong University student. May I have your name, sir?
我是交通大学的在校生苏珊，请问您贵姓？
Learn to say before you sing.
按部就班。
Mars is too dry and poor in oxygen, Venus far too hot, and so is Mercury,
火星太干燥又缺氧，金星太热，水星也一样。