The costs of additions and betterments are capitalized and expenditures for repairs and maintenance are expensed in the period incurred.

附加和修缮成本已资本化，并且发生了修理和维护费用。

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The costs of additions and betterments are capitalized and expenditures for repairs and maintenance are expensed in the period incurred.

附加和修缮成本已资本化，并且发生了修理和维护费用。

youdao