故障 (gùzhàng) is a noun meaning "malfunction," "breakdown," or "fault." It is used to describe technical problems with machines, systems, or equipment. Common collocations include 发生故障 (to have a malfunction) and 排除故障 (to troubleshoot).
电梯又出故障了,我们只能走楼梯。
Diàntī yòu chū gùzhàng le, wǒmen zhǐ néng zǒu lóutī.
The elevator broke down again; we can only take the stairs.
工程师花了两个小时才排除了这个故障。
Gōngchéngshī huā le liǎng gè xiǎoshí cái páichú le zhège gùzhàng.
The engineer spent two hours to fix the malfunction.
网络发生故障,导致整栋楼都断网了。
Wǎngluò fāshēng gùzhàng, dǎozhì zhěng dòng lóu dōu duànwǎng le.
The network malfunctioned, causing the entire building to lose internet access.
电梯又出故障了,我们只能走楼梯。
Diàntī yòu chū gùzhàng le, wǒmen zhǐ néng zǒu lóutī.
The elevator broke down again — we can only take the stairs.
工程师花了两个小时才排除了这个故障。
Gōngchéngshī huā le liǎng gè xiǎoshí cái páichú le zhège gùzhàng.
It took the engineer two hours to troubleshoot and fix the malfunction.
网络发生故障,导致整栋楼都断网了。
Wǎngluò fāshēng gùzhàng, dǎozhì zhěng dòng lóu dōu duànwǎng le.
The network malfunctioned, causing the entire building to lose internet access.