1. 无关的，不相关的，无联系的
2. 外来的
3. 外部的
4. 体外的
5. 范围外的
6. 局外的
7. 不重要的，枝节的
8. 外加的，附加的
9. 新异的
10. 额外的
11. 客的

1. not pertinent to the matter under consideration;

   "an issue extraneous to the debate"
   "the price was immaterial"
   "mentioned several impertinent facts before finally coming to the point"
   

2. not essential;

   "the ballet struck me as extraneous and somewhat out of keeping with the rest of the play"
   

3. not belonging to that in which it is contained; introduced from an outside source;

   "water free of extraneous matter"
   "foreign particles in milk"
   

4. coming from the outside;

   "extraneous light in the camera spoiled the photograph"
   "relying upon an extraneous income"
   "disdaining outside pressure groups"
   

1.无关的；不必要的
extraneous things are not relevant or essential to the situation you are involved in or the subject you are talking about.

e.g. We ought not to bring inextraneous matters in trying to find a basis for a settlement...
我们努力寻求解决问题的基础时，不应该牵扯进无关的事情。
e.g. I can choose to ignore theseextraneous thoughts or certainly choose not to act on them.
我可以选择无视这些无关的想法，当然也可以选择不按这些想法行事。

1. extraneous的解释

1. 外来的：在图9中我们找到几个限定符:错误的(incorrect)、丢失的(missing)以及外来的(extraneous). 丢失的表明代码本应在那现在却不在. 错误的表明代码存在,但是编写得不正确. 在这个案例中,由于我们已经找到了很多带有分配类型和运算法则类型的不正确的代码,

2. 外部的：13. crunchy 嘎吱作响的 | 14.extraneous 外部的 | 15. extrovert 外向性格的人

3. 无关系的：extramusical 音乐范围以外的 |extraneous 无关系的 | extranuclear 核外的

4. 附加的：extraneous water 外来水 |extraneous 附加的 | extranulear electron 核外电子