Correct
前车之覆，后车之鉴
/ qián chē zhī fù, hòu chē zhī jiàn /
Strokes
Definition
lit. the cart in front overturns, a warning to the following cart (idiom); fig. draw lesson from the failure of one's predecessor/learn from past mistake/once bitten twice shy
Example
Definition
the overturned cart ahead is a warning to those behind―one should take warning from others'mistakes