Usage note
事故指突然发生的、不好的事情,比如摔倒或撞到东西。我们要小心避免事故。
Shìgù zhǐ tūrán fāshēng de, bù hǎo de shìqíng, bǐrú shuāi dǎo huò zhuàng dào dōngxi. Wǒmen yào xiǎoxīn bìmiǎn shìgù.
Accident refers to something bad that happens suddenly, like falling down or bumping into something. We should be careful to avoid accidents.