Understructure
n. 基础, 下层结构
🗣️ 情景例句
If you waste all your time playing computer games, you'll never get anywhere in life.
如果你花过多的时间在电脑游戏上，你将前途黯淡。
Work today,for you know not how much you may be hindered tomrrow.
今朝有事今朝做，明朝可能阻碍多。
Let's get together again.
改天再聚聚。