外力干扰的英文：
external interference, outside interference
adj. 外面的，外部的；外国的；对外的；表面的；外用的
n. 外面，外部
external ordering
外次序
There must be externally moderated tests.
一定要有外聘人员负责审核评分的考试。
Language externalizes thought.
语言使思想具体化。
The medicine is for external, not for internal.
这药是外用的，不是内用的。
The external of the building is very attractive.
这座建筑物的外观是很吸引人的。
n. 干涉；干预；介入；干扰；冲突
The CIA was extremely wary of interfering with the foreign Press; in the past, such interference had rebounded.
中央情报局对干涉国外媒体的事情十分谨慎；过去此类干涉曾经起过适得其反的作用。
We interfered in their neighbourhood.
我们插手他们邻国的事务。
This government is full of interfering busybodies.
这个政府里净是爱管闲事的人。
He interfered and loused up the deal.
他插手把那笔买卖搞糟了。
By interfering in this matter you are poached on my preserve.
你干预此事就是在我的责任范围内越俎代庖。