讨价还价
临机应变

Higgle \Hig"gle\, v. i. [imp. & p. p. {Higgled}; p. pr. & vb. n.
{Higgling}.] [Cf. {Haggle}, or {Huckster}.]
1. To hawk or peddle provisions.

2. To chaffer; to stickle for small advantages in buying and
selling; to haggle.

A person accustomed to higgle about taps. --Jeffry.

To truck and higgle for a private good. --Emerson.