shorten
verb [ I or T ] uk/ˈʃɔː.tən/ us/ˈʃɔːr.tən/
C1 （使）变短，（使）缩短
to become shorter or to make something shorter
As you grow older, your spine shortens by about an inch. 随着年龄变老，你的脊柱将缩短约1英寸。
I've asked him to shorten my grey trousers. 我已经请他把我的灰色裤子改短一些。
The name William is often shortened to Bill. “威廉”这个名字经常被简称为“比尔”。