Heptagons
n. 七角形；[数] 七边形
🗣️ 情景例句
Is that you, Susan?
是你吗， Susan？
How long will it take you to have it counted?
你要多少天才能把它计算好？
Autumn is a busy season. The days get shorter and the nights get longer.
秋天是繁忙的季节。白天逐渐变短，夜晚则渐渐变长。