如果价格合理，英文表达为 "reasonable price"。
来源：reasonable 是形容词，意为合理的、适当的；price 是名词，意为价格。
英文例句：
The car is in good condition and the price is reasonable.
中文翻译：这辆车状况良好，价格合理。
I think the hotel's room rates are quite reasonable.
中文翻译：我认为酒店的房间价格非常合理。
The dress is a bit expensive, but I think it's a reasonable price for the quapty.
中文翻译：这件裙子有点贵，但我认为质量来说这个价格是合理的。