不及物动词

1. (使)变强烈(或紧张);(使)加剧
If a situation or emotion deepens or if something deepens it, it becomes stronger and more intense.

2. 加深，深化，增进（知识或理解）
If you deepen your knowledge or understanding of a subject, you learn more about it and become more interested in it.

3. （使）(光线或颜色)变暗;（使）变深
When light or a colour deepens or is deepened, it becomes darker.

4. （使）(声音)变低沉
When a sound deepens or is deepened, it becomes lower in tone.

5. (呼吸)变深长;加深(呼吸)
When your breathing deepens, or you deepen it, you take more air into your lungs when you breathe.

6. 挖深
If people deepen something, they increase its depth by digging out its lower surface.

7. (河流、海洋等)变深
Something such as a river or a sea deepens where the bottom begins to slope downwards.