Subject + 失去 + 了 + Object
The verb 失去 (shīqù) means "to lose" in Chinese, specifically referring to losing something one once had. It is used for abstract losses such as losing a person, opportunity, freedom, or quality, rather than misplacing physical objects.
失去健康以后,他才明白什么最重要。
shīqù jiànkāng yǐhòu, tā cái míngbai shénme zuì zhòngyào.
Only after losing his health did he understand what is most important.
她不想失去这次难得的工作机会。
tā bù xiǎng shīqù zhè cì nándé de gōngzuò jīhuì.
She doesn't want to lose this rare job opportunity.
那场大火让他们失去了所有的家产。
nà chǎng dàhuǒ ràng tāmen shīqù le suǒyǒu de jiāchǎn.
That big fire caused them to lose all their family property.