Preknowledge
预先了解
🗣️ 情景例句
We've been driving for hours with no gas station in sight.
我们开车开了好久也没有看到一个加油站。
Between two stools one falls to the ground.
脚踏两头要落空。
I feel like eating an ice-cream.
我想吃一个冰淇淋。