prone的意思是: 易于 … 的, 有 … 倾向的。 利用“名词+prone”这种形式来代替一些使用动词翻译的句型，可以让句子更加的简洁。
Residents of western states tend to marry younger, and it is easier for younger people to get divorced.
Residents of western states tend to marry younger, and younger people are more divorce-prone.
It is generally agreed that drivers who are in the habit of drinking are usually more accident-prone.
According to a newspaper, children from divorced parents are generally more crime-prone.
Those who like eating sweet or oily food are more fat-prone than those who eat less sweet and fat food.