All right. So it is troublesome, and it's troublesome also, perhaps, in a variety of other ways that I won't go into.

这真让人苦恼，而且也许在其他方面也很讨厌，我就不详细讨论了。

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Experts warn that the two countries are developing a troublesome dynamic a bit like the one between Pakistan and Afghanistan.

ECONOMIST: Yemen��s election

But when the virus produces protein, a troublesome mutation results in a change to the amino acid sequence that makes up the protein.

ECONOMIST: Viruses: Hunt the mutant | The

Still, these surreptitious ways of masking tax increases are troublesome from a tax planning perspective.

FORBES: Will Your Taxes Go Up?