记忆方法
将“deepen”分解为“deep”和“-en”后缀，想象“deep”（深）在受到“-en”的影响下逐渐变得更深，形成一个动态的加深过程，以此来记忆“deepen”意为加深。
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英语词源
- deepen (v.)
- c. 1600, from deep (adj.) + -en (1). Related: Deepened; deepening. The earlier verb had been simply deep, from Old English diepan.
权威例句
- 1. He did not get a chance to deepen his knowledge of Poland.
- 他没有机会更深入地了解波兰。
- 2. When you are ready to finish the exercise, gradually deepen your breathing.
- 准备结束练习时，要慢慢地深呼吸。
- 3. The music room had been made to reflect and deepen sounds.
- 这间音乐室经过特殊设计处理，能够反射声音，使声音变得低沉厚重。
- 4. A long drawn out war would likely deepen and prolong the recession.
- 一场旷日持久的战争很可能会使衰退程度加剧，时间延长。
- 5. He heard her breathing deepen.
- 他听到她的呼吸变深了。