Correct

出轨

/ chūguǐ /
Strokes

Definition

derailment (railway accident)/to leave the rails/fig. to overstep bounds/fig. to have an extramarital affair

Example

As a Verb

go/be off the rails; leave/jump the rails; be derailed; derail; jump the track

1
Huǒchē
火车
rán
突然
chūguǐ
出轨
  
,
yǒuxiē
有些
rén
shòu
le
shāng
  

Some people were injured when the train jumped the rails/track.

2
Chūguǐ
出轨
de
lièchē
列车

derailed train

As a Verb

overstep the bounds; exceed what is proper

3
Duì
shì
女士
jiǎng
zhèyàng
这样
de
huà
tài
chūguǐ
出轨
le
  

It is surely overstepping the mark to say that to a lady.

4
Chūguǐ
出轨
xíngwéi
行为

improper/out-of-bounds behaviour

As a Verb

have an affair; cheat on one's spouse

5
yǒngyuǎn
永远
zhīdào
知道
zhàngfu
丈夫
de
chūguǐ
出轨
xíngwéi
行为
  

She never knew of her husband's infidelity.

6
Jīngshén
精神
chūguǐ
出轨

emotional cheating/infidelity