1. By comparison, nearly half of male high-school students express their preference for a traditional, male-headed, one provider, nuclear family, where the wife stays home as mother and housewife.
    与此相比, 几乎有一半男中学生表达了他们对传统的、以男人为家长的、只有一个人养家糊口的核心家庭的偏爱，在这种家庭里妻子作为母亲和家庭主妇呆在家里。

2. A polar bear has a preference for cold weather.
    北极熊喜欢寒冷的天气。

3. A polar bear has a preference for cold weather.
    北极熊喜欢寒冷的天气。

4. One provision of the bill states that, among non-immigrant visa applicants, the state should give preference to foreign nationals with secondary degrees in math, science, engineering or technology.
    该议案的一项条款规定：在非移民签证申请者中，政府应优先考虑给那些具有数学、自然科学、工程或技术方面中级学位的外国公民，