precava 的定义
plural pre·ca·vae [pree-key-vee, -kah-vahy]. /priˈkeɪ vi, -ˈkɑ vaɪ/.
- See under vena cava.
- either of a pair of veins that pass through the kidney to the branchial heart.
📖毕业后词汇淀积物淀积淀水前列腺
plural pre·ca·vae [pree-key-vee, -kah-vahy]. /priˈkeɪ vi, -ˈkɑ vaɪ/.