studied

动词 study:

1. consider in detail and subject to an analysis in order to discover essential features or meaning
   同义词：analyze, analyse, study, examine, canvass, canvas
2. be a student; follow a course of study; be enrolled at an institute of learning
   同义词：study
3. give careful consideration to
   同义词：study, consider
4. be a student of a certain subject
   同义词：learn, study, read, take
5. learn by reading books
   同义词：study, hit the books
6. think intently and at length, as for spiritual purposes
   同义词：study, meditate, contemplate

形容词 studied:

1. produced or marked by conscious design or premeditation- V.L.Parrington
   同义词：deliberate
2. carefully practiced or designed or premeditated
   同义词：designed

1. He studied hard in an attempt to pass the exam.
   他努力学习试图通过考试。
2. You shouldn't enter into/make a contract until you have studied its provisions carefully.
   你应该先仔细研究合同的条款，然後再签订。
3. He studied Shakespeare's texts.
   他学习了莎士比亚的原作。
4. Some scientists who have studied dangerous substances have paid the forfeit of their lives in the cause of knowledge.
   许多研究危险物质的科学家，在追求知识中付出了生命的代价。
5. She studied sculpture at art school.
   她在美术学校学习雕刻。
6. He studied physical geography.
   他研究自然地理。
7. He studied hard, and in consequence he passed the exam.
   他努力学习，因此通过了考试。
8. She spoke with studied politeness.
   她故作有礼地讲话。