deepen /ˈdiːpən/ TEM4 ( deepening, deepened, deepens )

• 1. 

  V-T/V-I If a situation or emotion deepens or if something deepens it, it becomes stronger and more intense. 使加剧; 加剧

  例：

  If this is not stopped, the financial crisis will deepen.

  如果不加以阻止，金融危机将加剧。

• 2. 

  V-T If you deepen your knowledge or understanding of a subject, you learn more about it and become more interested in it. 使加深

  例：

  The course is an exciting opportunity for anyone wishing to deepen their understanding of themselves and other people.

  这门课程对于希望加深了解自己和他人的人们来说，是个令人兴奋的机会。

• 3. 

  V-T/V-I When a sound deepens or is deepened, it becomes lower in tone. 使变低沉; 变低沉

  例：

  The music room had been made to reflect and deepen sounds.

  音乐室被打造成可以产生回音并使声音变得低沉。

• 4. 

  V-T If people deepen something, they increase its depth by digging out its lower surface. 加深

  例：

  The project would deepen the river from 40 to 45 feet, to allow for larger ships.

  这一工程将把河从40英尺加深到45英尺，以通过更大型的船只。