Childbirth preparation classes routinely teach pregnant women deep breathing exercises to minimize the pain and anxiety of labor.
分娩准备班，常例行公事地教孕妇们深呼吸的练习以减少分娩所带来的痛苦和忧郁。
This handbook covers the major classes of polymeric foams and discusses their chemistry, properties, preparation methods including commercial processes, and applications.
这本手册涵盖了聚合物泡沫的主要类别，并讨论它们的化学性质，制备方法，包括商业流程和应用程序。
This paper discusses the status and trends of the films classes, the materials used in the PDP and the technology for the preparation of films.
本文对PD P中所用膜的种类、材料及成膜技术的现状、进展以及存在的问题进行了论述。
Some offer classes in CAD rendering and other types of computer-assisted preparation of metal designs.
有些还设有计算机辅助设计渲染课和其它类型的有关金属设计的电脑辅助制备课。
We obtained good results of bilingual teaching by earnest preparation before the classes, the use of various means in the classes and enhancement of practice after classes.
通过课前精心准备、采用多种教学方法和手段，课后强化训练等，获得了较好的效果。
New Oriental offers English and other foreign-language classes, test-preparation and online instruction.
新东方的主要课程包括英语及其它外语类课程、备考类课程及在线教育课程。
The college dropout had begun his nonprofit Skills Exchange in 1977. Classes ranged from sushi preparation to poetry writing.
从大学退学后，他在1977年创办了技能交流班，提供各种培训课程，从寿司制作班到诗歌创作班都有，但是未能盈利。
On weekdays, our whole family is fully engaged. Father makes preparation for his classes or writing monographs or research papers;
工作日，全家都忙着干活，爸爸准备备课笔记，撰写专著与论文；
On weekdays, our whole family is fully engaged. Father makes preparation for his classes or writing monographs or research papers;
工作日，全家都忙着干活，爸爸准备备课笔记，撰写专著与论文；
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