Employment costs rose 2.8 percent in the 12 months that ended in September, slightly less than they did in the year that ended in the previous quarter.
less than they did
less than it did
less than they were
lower than
lower than they were
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注意比较的内容是增长(rose)的百分比,而非 开销, 所以要用副词less,而非形容词lower
注意比较的内容是增长(rose)的百分比,而非 开销, 所以要用副词less,而非形容词lower
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