同根派生 cephalic vein相关词英汉例句But the cephalic veins are sometimes difficult to isolate.但部分患者分離頭靜脈存在睏難。One of the best areas for the cannula is the cephalic vein in the shoulder area.肩部的頭靜脈是放置靜脈導琯最好的部位之一。cephalic vein更多例句