I appreciate your counter-offer but find it too low.
谢谢您的还价，可我觉得太低了。
Words and Phrases
firm offer
实盘
official offer
正式报价（报盘）
to make an offer for
对……报盘（报价）
to offer for
对……报价
wild speculation
漫天要价
thepreference of one‘s offer
优先报盘
subject to
以……为条件，以……为准
make headway
有进展
at wide intervals
间隔时间太长
counter-offer
还盘，还价