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關注：1
2013-05-23 12:21
求翻譯：In areas where the noise level is between the guideline value and 80dB(A), ear plugs can be put at disposal.是什么意思？ 待解決
 懸賞分：1
- 離問題結束還有
In areas where the noise level is between the guideline value and 80dB(A), ear plugs can be put at disposal.
問題補充： |
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