Ditetragon
双四边形
🗣️ 情景例句
We couldn't afford it.
我们当时不够钱。
Camping with a group is fun.
大伙露营是趣味横生的事。
There are one hundred thousand million stars in our own Milky Way alone,
仅我们的银河系就有1000亿颗恒星，