The testimony would inflame the jurors, and lead them astray from the facts of the case
證言會激怒陪審員，使他們背離案件事實。
If it hadn't been for him, we would have gone astray.
如果不是他的話，我們就迷路了。
An error, the breadth of a single hair, can lead you a thousand li astray.
差之毫釐，謬以千里。
A lamb goes astray on a forked road.
歧路亡羊。
In the present instance, you are quite astray.
這樁事上你可完全搞錯啦！