但是你一定要谨慎行事，一定不要卤莽行动。

But you need to be wary of reckless action.

youdao

关于这一点，他一直很谨慎，唯恐把我惹急了。你一定要说明白我若放弃这个策略的危险性，而且提醒他我的暴躁脾气，只要一闹起来，就会发狂的。

To this point he has been discreet in dreading to provoke me; you must represent the peril of quitting that policy, and remind him of my passionate temper, verging, when kindled, on frenzy.

youdao

因此，他建议，如果你打算投诉，一定要谨慎。

So if you do decide to formally complain, he advises doing it carefully.

youdao