higher grade pay
较高职级薪酬
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Mercedes recommends 91-octane fuel, but the per-gallon difference of 15 to 20 cents seems a high price to pay for a grade that is only two octane levels higher than regular.
WSJ: Is Regular Gas Good Enough?
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