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。
If it hadn't been for him, we would have gone astray.
如果不是他的话，我们就迷路了。
An error, the breadth of a single hair, can lead you a thousand li astray.
差之毫厘，谬以千里。
A lamb goes astray on a forked road.
歧路亡羊。
In the present instance, you are quite astray.
这桩事上你可完全搞错啦！