fly off at a tangent

Don't fly off at a tangent, we are talking about the money problem.

不要扯别的, 我们谈的是那笔钱的问题.

Don't fly off at a tangent, stick to the subject.

紧扣主题,不要跑野马.

One can not rely upon him; he is apt to fly off at a tangent.

人们不能依靠他, 他的行为常超出常规.

Now stick to the point. Let's not fly off at a tangent as we did last week.

请紧扣要点,不要像上星期那样扯到题外.