Things only got testier when Bear Stearns announced abysmal fourth-quarter results on Dec. 20.
贝尔斯登12月20日宣布了第四季度惨淡的业绩后，事情变得更加糟糕。
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As hackers navigate the testier legal landscape, however, law enforcement officials are having an equally tough time tracking down the cybercriminals within those communities.
由黑客们导引着艰难的法律环境，尽管如此，执法人员在这些社区中追踪网络犯罪时同样举步维艰。
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(Fig. B): The more particles we squeeze into the container, the testier they will become, especially if the container happens to be a rush-hour downtown local at 86th and Lex.