Noncausal
原因不明的, 无关联的
🗣️ 情景例句
Does this car have good fuel economy?
这种车省油吗？
If you lose your way, ask a policeman.
如果你迷路了，可以向警察打听。
Well, that pair looks nice. How much do they cost?
嗯，那双看来不错。多少钱？