Company officials say the problem part has been traced to one U.S.supplier and does not affect vehicles made in Japanese plants.

VOA: standard.2010.01.28

All these cells come from the bone marrow and biologists have traced the formation of these cells in great detail.

所有这些细胞都来自骨髓,而生物学家已经很详细地,研究了这些细胞的形成过程

耶鲁公开课 - 生物医学工程探索课程节选

What happened subsequently can, I think, be traced to Derrida's lecture.

我认为之后的事，可以追溯到德里达的演讲。

耶鲁公开课 - 文学理论导论课程节选

Like I said, they wanted them to be traced back to the apostles.

就像我所说的，作者希望人们认为它是使徒所写。

耶鲁公开课 - 新约课程节选

Whenever there is a force, it can be traced back to a tangible material cause, which is all the time a force of contact, with the exception of gravity.

如果有作用力,那它一定能找到一个明确的实体施力物体,也就是无论何时物体受的都是接触力,引力除外

耶鲁公开课 - 基础物理课程节选