他补充说，价格差距很大，从一个公司到另一个保镖因为没有行业标准，这意味着服务质量参差不齐。
He added that prices vary wildly from one bodyguard company to another because there are no industry standards, meaning the quality of service varies.
经常情况下，即使一位职业拍卖师建议的价格与马匹、古董、油画或其它物品的最终售价都有很大的差距。
Think how often even a professional auctioneer's opinion as to the guide price differs from the one for which the horse, antique, painting or whatever is eventually sold.
软枫的价格只有硬枫价格的三分之一多，差距很大。
Soft maple price only hard maple price of more than one-third, difference.
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