deepen
vt.& vi.变深，加深；低沉
vt.加浓
网络解释.加深；使加深
词形变化:
过去式：deepened 过去式：deepened 过去式：deepening 过去式：deepens
v.1.加深释义下的同义词
out scoop excavate cut dredge dig
2.深化释义下的同义词
reinforce intensify add redouble increase strengthen amplify to augment heighten
双语例句
1. 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