If these tangles, which are a natural consequence of the DNA copying process, are left unresolved the chromosomes cannot be separated and sent to the two nascent daughter cells.

如果这些染色体复制过程的自然结果所造成的纠结没有被解开，染色体就不能被分离并送到两个子细胞中。

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The U.N. is clearly concerned that there is a still long list of issues left unresolved.

NPR: U.N. Chief in Iraq Sees Limited Progress

The contentious floor debate left unresolved a spectrum of issues that must still be settled in conference.

CNN: By Alan K. Ota, CQ Staff Writer

The two leaders left unresolved another contentious issue: U.S. troop levels after 2014, when the current NATO combat mission ends.

WSJ: Obama to Speed Troop Exit