Renault's competitor PSA Peugeot Citroen is "extremely vigilant" about the risks of industrial espionage.
雷诺的竞争对手标志雪铁龙“极其警惕”工业间谍的风险。
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However, a different explanation is necessary in cases where the vigilant behavior is not directed at predators.
然而，在警觉行为不针对捕食者的情况下，则需要不同的解释。
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While such vigilant tracking of cancer is a good thing in general, researchers are increasingly questioning whether all of this testing is necessary for the elderly.