umbilical cord
/BrE ʌmˌbɪlɪk(ə)l ˈkɔːd 
, AmE ˌəmˈbɪlək(ə)l ˌkɔrd /
noun
1 Anatomy 脐带;
to cut/tie the umbilical cord 剪断／扎上脐带;
to break the umbilical cord and leave home 离开父母开始自立
2 Aerospace, Nautical 空间生命管线
umbilical cord
English → Chinese
Oxford English–Chinese