| 单词 | precava |
| 释义 | precava in British English (priːˈkɑːvə) noun the superior vena cava, the vein which carries blood from the head, chest and arms back to the heart; more generally, any cranial vena cava precava in American English (priˈkeɪvə) nounWord forms: plural preˈcavae (priˈkeɪvi) the superior vena cava of four-limbed vertebrates Derived forms precaval (preˈcaval) adjective Word origin pre- + vena cava |
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