现在，一部好剧本的情节通常是由秘密推动的。

Now, the plot of a well-made play is usually driven by secrets.

youdao

光的行为好象它是由粒子组成的。

Light behave as if it were made of particles.

youdao

录像带录好后，由USO组织把这些录像带或者DVD碟片以及所读的书籍送到士兵们在美国的家里，他们的子女就能够体验远离的亲人正在向他们朗读书籍的情景。

The USO then sends the videotape/DVD and the book to the soldier’s family so their children can have the experience of their parent reading to them while they are still serving away from home.

youdao

Anyway, the work associated with process number two is described by this box.

好，刚才那个过程的功,由这个矩形描述。

麻省理工公开课 - 热力学与动力学课程节选

It's your own decision to eat Okay. The man is in charge of his dietary destiny.

吃什么该由你自己做主,很好,男人应该掌控自己的饮食命运

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Cars are made up of parts that existed before the car itself existed.

汽车是由不同的零部件组成的,它们在车组装好之前就已经存在了

耶鲁公开课 - 死亡课程节选