Meaning of guò shī:
过失
error; fault; (law) negligence; delinquency
Tā de shìgù shì yóuyú tā zìjǐ de guòshī yǐnqǐ de.
他的事故是由于他自己的过失引起的。
His accident was caused by his own error.
Nà bù shì wǒ de guò shī.
那不是我的过失。
That is not my fault.
Yóuyú tā de guòshī, gōngsī méngshòu le jùdà de sǔnshī.
由于他的过失,公司蒙受了巨大的损失。
Due to his negligence, the company suffered a huge loss.
Tā de guòshī dǎozhìle gōngsī jùdà de sǔnshī.
他的过失导致了公司巨大的损失。
His delinquency caused significant losses for the company.