While a few countries are making major strides in this regard, the majority are having great difficulty even stemming the rate of increase, let alone reversing it.
虽然一些国家在这方面取得了显著的成果，但大多数国家就连降低（碳排放的）增长率都很难，更别说减排了。
As the tunnel cross-section increases, resulting in an increase of the difficulty in construction, making the tunnel construction security accidents occur frequently.
由于隧道断面的增大，导致了施工难度的增加，使得隧道施工安全事故频频发生。
As the tunnel cross-section increases, resulting in an increase of the difficulty in construction, making the tunnel construction security accidents occur frequently.
由于隧道断面的增大，导致了施工难度的增加，使得隧道施工安全事故频频发生。
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