rule out是什么意思？

rule out 排除；取消；划去；反对；阻止
同近义词 eliminate , exclude , recall
例如：
This should let you rule out certain areas and focus on one or two.
这样应该就可以让您排除某些方面，而将注意力放在一两个方面。
rule out 否认，不承认
He firmly ruled out that he had met with Rosaline.
他坚决否认曾与罗莎琳接触过。

rule out：用直线划掉; 宣布…不可能，排除…的可能性; 

例句如下：

1. The tissue is examined microscopically to rule out or confirm cancer.                                                                                                                利用显微镜检查组织，以排除或确认癌变。

2. The Constitution did not definitively rule out divorce.                                                                                                                      

宪法没有明确排除离婚。

3. The regulations rule out anyone under the age of eighteen.                                                                                                                      

按规定,18岁以下的人都不能参加.

4. But this does not rule out unofficial discussions.                                                                                                                  但这并不排除进行非正式的讨论.

5. Rule out a misspell word.                                                

划掉一个拼错的词.