【植;数】root

• 生根

  take root

• 连根拔

  pull up by the roots

• 平方根

  square root

• 立方根

  cube root

• 求根

  extract a root

参见：根苗

下部base

• 头发根

  hair root

• 牙根

  tooth root

• 墙根

  base of a wall

本原origin

• 祸根

  seeds of misfortune

依据grounds(plural)

• 无根之谈

  groundless talk

【化】radical

• 酸根

  acid radical

used for long thin objects

• 一根火柴

  a match

• 两根竹竿

  two bamboo poles

彻底地thoroughly