complications
A complication is a problem or difficulty that makes a situation harder to deal with.
The age difference was a complication to the relationship.
年龄差异是使该关系复杂化的一个因素。
There are too many complications to explain now.
现在有太多使情况复杂化的因素要解释。
A complication is a medical problem that occurs as a result of another illness or disease.
Blindness is a common complication of diabetes.
失明是糖尿病常有的一种并发症。