Bipyramidal
双锥体
🗣️ 情景例句
I never expected you would do such a fantastic job.
我从没想过你会做得这么出色！
This isn't a laughing matter.
这种事是不能开玩笑的！
It is no use offering the manual labourer, tired out with a hard week's sweat and effort,
对于流汗出力干了一周苦活的体力劳动者来说，是不合适的；