但事实上是已知汇远远大于已知源，且各个源汇的通量在不同研究中结果差异较大，归其原因是卤代甲烷释放与吸收机制的不确定性。

In fact, identified sinks outweigh known sources and fluxes of each source and sink have great discrepancy in different results, this is due to uncertainty of gas production and degradation mechanism.

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迈克尔-考利昂站在百老汇大街“杰克-代姆普瑟”饭店门前等人来接他。

Michael Corleone stood in front of Jack Dempsey's restaurant on Broadway and waited for his pickup.

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