He never swerves from his duty.是什么意思？

He never swerves from his duty.

他从不背离职守.

he

pron. 他，它，一个人；n. 雄性动物；

例句
Logic had prevailed and he had abandoned the idea.
最终理智占了上风，他打消了那个念头。

never

adv. 从不，从来没有，一点也不，决不，<口>不会…吧，没有，不曾；

例句
The public never had faith in his ability to handle the job...
公众从来不相信他有能力胜任这一职位。

swerves

n. （使）改变方向，改变目的( swerve的名词复数 )；v. （使）改变方向，改变目的( swerve的第三人称单数 )；

例句
The road swerves to the right.
道路向右转弯.

from

prep. （表示时间）从…，（表示原因）因为，（表示来源）来自…，（表示分离）与…分离[隔开]；

例句
...an abortive attempt to prevent the current President from taking office.
企图阻止现任总统连任的失败尝试

his

pron. (he的所有格)他的，(he的物主代词)他的东西；det. 属于他的，用于名词前，自己的，指某人的，上帝的；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

duty

n. 职责，责任，义务，职责或工作，税收；

例句
His sense of duty often stood between him and the enjoyment of life.
他的责任感经常让他无法好好享受生活。