- deepen
 - ['di:pən]
 - vt. 使加深;使强烈;使低沉
vi. 变深;变低沉 
参考例子
           - 1.Larger ships will be able to navigate the river after the main channel is deepened.
 - 主要河床被挖深后,较大船舶将能航行于此河流。
 
- 2.If you are, be sure to take time to savor it so it can deepen and remain with you.
 - 如果你是如此,那麽你一定要慢慢地去品尝它,好让它能够深入你里面,并停留在那里。
 
- 3.One researcher says that young men and women spend up to 16 hours a week to establish and deepen their love relationship.
 - 一位研究人员说,年轻的男女每周要花16个小时以上的时间来建立和加深他们的恋爱关系。
 
英文解释
           - v.
 - 1.make more intense, stronger, or more marked
 - 2.become more intense
 - 3.make deeper
 - 4.become deeper in tone
 
网络释义
               - deepen
 - 加深; 深化; 使加深; 变深;
 
- deepen drawing
 - 深化图纸;
 
- Deepen Tones
 - 深色调节;
 
- Deepen impression
 - 加深印象;
 
- deepen reform
 - 深化改革;