如何使用 "studied" 造句

1. The scientists studied the eating habits of low-income families .
科学家研究了低收入家庭的饮食习惯。
2. The researchers studied cement from manufacturers around the world .
研究员们从世界各地水泥制造商那里研究水泥。
3. For two years anne studied hard at school .
安妮在学校里刻苦学习了两年。
4. I 'm interested in the experience of those who have studied chinese for a while .
我对那些学了一段时间汉语的人的经历很感兴趣。
5. His niece studied civil engineering at the university of southern california .
他的侄女就读于美国南加州大学土工程系。