adj.脐带的；母系的；中央的

The umbilical cord is crucial for the exchange of nutrients and waste between mother and fetus.
脐带对于母亲和胎儿之间的营养物质交换和废物排泄至关重要。
After birth, the umbilical stump will eventually dry up and fall off.
出生后，脐带残端最终会干枯并脱落。
The astronaut's umbilical tether connects him to the space station for safety.
宇航员的脐带式系绳将他与空间站连接，以确保安全。
In some cultures, burying the umbilical cord is a traditional practice.
在某些文化中，埋葬脐带是一种传统习俗。
The umbilical artery carries deoxygenated blood from the fetus to the placenta.
脐动脉将胎儿的缺氧血液输送到胎盘。
The umbilical vein transports oxygen-rich blood from the placenta to the fetus.
脐静脉将富含氧气的血液从胎盘输送到胎儿。
The umbilical area should be kept clean to prevent infection.
应保持脐部清洁，以防感染。
The umbilical hernia can occur when there is a weakness in the abdominal wall near the belly button.
当肚脐附近的腹壁有弱点时，可能会发生脐疝。
During the umbilical cord cutting ceremony, the father often has the honor of severing the connection.
在剪断脐带的仪式上，父亲通常享有切断联系的荣誉。
The umbilical cord blood bank stores stem cells that can be used for medical treatments.
脐带血库储存可用于医疗治疗的干细胞。