The cabbage I bought is too old.

The cabbage I bought is too old. On a dark night, there are no street lamps. There is a vendor selling Chinese cabbage. I can't tell if the cabbage is old. I've been ordering Chinese cabbage for two yuan each. So I became greedy and bought my house. Only to find that it is an old cabbage. Can't eat. This is a penny for a penny, and you can't be greedy for petty gain.