drive a hard bargain
US /draɪv ə hɑːrd ˈbɑːr.ɡɪn/
UK /draɪv ə hɑːrd ˈbɑːr.ɡɪn/

1.
討價還價很厲害, 強硬談判
to negotiate forcefully and refuse to make concessions
:
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She always drives a hard bargain, so be prepared to negotiate.
她總是討價還價很厲害,所以要準備好談判。
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The company is known to drive a hard bargain with its suppliers.
這家公司以與供應商討價還價很厲害而聞名。