Smellie improved the forceps and wrote a bestselling practical midwifery handbook.

斯梅利改良了产钳，并写下了实用的助产术手册。

youdao

Smellie improved the forceps and wrote a bestselling practical midwifery handbook.

斯梅利改良了产钳，并写下了实用的助产术手册。

youdao