If someone or something leads you astray, they make you believe something which is not true, causing you to make a wrong decision. [V inflects]
The testimony would inflame the jurors, and lead them astray from the facts of the case…
证言会激怒陪审员，使他们背离案件事实。
We drove east to Rostock, where my map led me astray.
我们驱车向东去罗斯托克，但地图却给我指错了方向。
to go in the wrong direction or to have the wrong result 走错方向；误入歧途
Fortunately the gunman’s shots went astray.
幸好持枪歹徒把子弹打偏了。
Jack’s parents thought the other boys might lead him astray (= make him do things that are wrong).
杰克的父母认为，其他的男孩可能会把他引入歧途。