deepen
                                                    英 ['diːp(ə)n]
                                                                        美 ['dipən]
                        
                
                
                
                    
                        - vt. 使加深;使强烈;使低沉
- vi. 变深;变低沉
 
                
                    
                                    
                
                                                                                                        deepen 英文词源
                
                
                    
                        - deepen (v.)
- c. 1600, from deep (adj.) + -en (1). Related: Deepened; deepening. The earlier verb had been simply deep, from Old English diepan.
 
                
                                                    deepen 双语例句
                
                
                    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。 来自柯林斯例句
 - 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。
来自柯林斯例句
 
- 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。
来自柯林斯例句
 
- 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。
来自柯林斯例句
 
- 5. He heard her breathing deepen. 
- 他听到她的呼吸变深了。
来自柯林斯例句