n. 石头;宝石;矿石;(膀胱或肾脏中的)结石;
vt. 向扔石块;用石头铺;以石掷向;除(水果的)硬核;
adj. 石制的;石头似的;[S-]石器时代的;粗陶制的;
adv. 石一般的;
🗣️ 情景例句
Absolutely.
可不是。
What day is today?
今天是星期几?
Up to now, historians have assumed that calendars came into being with the advent of agriculture, for then man was faced with a real need to understand something about the seasons.