To sever something means to cut completely through it or to cut it completely off.
例句
Richardson severed his right foot in a motorbike accident.理查森在一次摩托車事故中失去了他的右腳。...oil still gushing from a severed fuel line.石油仍然從被切斷的燃料運輸管中噴涌而出
VERB
(突然)斷絕，中斷(關系)
If you sever a relationship or connection that you have with someone, you end it suddenly and completely.
例句
She severed her ties with England...她斷絕了和英國的往來。He was able to sever all emotional bonds to his family.他切斷了和家人的所有感情紐帶。
英漢詞典釋義
vt.
切斷;斷絕
sever a relationship斷絕關系She wanted to sever all her connections with the firm.她想斷絕和那家公司的所有聯系。We have severed diplomatic relations with that country.我們與那個國家斷絕了外交關系。
英英詞典釋義
Verb
1. set or keep apart;
"sever a relationship"
2. cut off from a whole;
"His head was severed from his body""The soul discerped from the body"