Radia symmetry
[医] 辐射对称
🧩 词语组成解析
[法] 反箕形纹
🗣️ 情景例句
Maybe I can help. Tell me what it is, Susan.
也许我能帮忙。说给我听听 ，Susan。
I'm afraid you will be disappointed.
我怕你会失望。
The development of such a telescope will be one of the great astronomical projects of the twenty-first century.
而开发这样一台望远镜将会是21世纪天文学的一个重要的研究课题。