rule out

消除； 排除； 划线隔开

Of course He did not rule out that additional layoffs might occur later.(当然了，他并没有排除未来还会继续裁员的可能。)

You rule out confiscation.(你排除了没收这种选择。)

But even then, it does not rule out the existence of cops.(但即使如此，我们也不能排除警察的存在。)

So they are doing all they can to rule out more pedestrian explanations.(因此，他们要尽力排除更多需要冗繁陈腐的解释的事情。)

Physical and eye examinations, with special attention to cardiac and blood-pressure problems, should be performed annually to rule out serious medical conditions.(每年应进行身体和眼睛检查，特别注意心脏和血压问题，以排除严重的疾病。)

He does not rule out this possibility.(他并未排除这种可能性。)

It is true a board would be stupid to rule out anyone over 50 for the top job.(的确，如果董事会将任何超过50岁的人都排除在最高职位之外，这是愚蠢的做法。)

But neither does he rule out a share buy-back.(但是他也没有排除回购的可能。)

So, we can rule out a randomized controlled experiment.(因此，我们可以将随机对照实验排除在外。)

We can probably rule out alien technology, though.(不过，我们可以排除掉外星人技术这一可能了。)

verb

1. dismiss from consideration or a contest

e.g. John was ruled out as a possible suspect because he had a strong alibi
This possibility can be eliminated from our consideration

Synonym: eliminatewinnow outreject

2. include or exclude by determining judicially or in agreement with rules

Synonym: rule in

3. make impossible, especially beforehand

Synonym: precludeclose out

1. 排除;不予考虑
If you rule out a course of action, an idea, or a solution, you decide that it is impossible or unsuitable.

rule out的解释

e.g. The Prime Minister is believed to have ruled out cuts in child benefit or pensions...
据信首相已经排除了削减儿童救济金或养老金的可能。
e.g. Local detectives have ruled out foul play.
当地的侦探已经排除了他杀的可能性。

2. 阻止…发生;使…成为不可能
If something rules out a situation, it prevents it from happening or from being possible.

e.g. A serious car accident in 1986 ruled out a permanent future for him in farming.
1986年一场严重的车祸让他永远不可能再务农了。