Ditetragon
双四边形
🗣️ 情景例句
We had this part of the conversation
我们正谈到这儿
A good idea came into my mind.
我想到一个好主意。
The first question to answer is whether a planet can actually support life.
第一个需要解答的问题是一颗行星是否有能够维持生命的条件。