What did they charge for the repairs?
他们收了多少修理费？
What did he charge for the repairs?
他们收了多少修理费？
What do they charge for the repairs?
他们收了多少维修费？
So the total charge for repairs and depreciation is stabilized in this way.
所以维修的总价和折旧在这种方式下是固定不变的。
What did they charge for the repairs ?
他们收了多少修理费？
What did they charge for the repairs ?
他们收了多少修理费？
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