Making their work more complicated still, when a pool of water is suddenly found with potentially lethal doses of radiation, the other measurements are thrown into doubt.
一池水中突然被检测出带有可能足以致命的辐射，这使其工作变得更加复杂，也其他测量数值陷入质疑。
More serious still is a new mood of self-doubt.
更加严峻的是新生的一种自我怀疑的情绪。
More than 100 years after the first Labor day observance, there is still some doubt as to who first proposed the holiday for workers.
第一次庆祝劳动节超过100年后，仍然有一些怀疑谁首先提出了工人的假期。
More worrying still is the chance that Mr Geithner's vagueness comes from doubt about what to do, a reluctance to take tough decisions, and a timidity about asking Congress for enough cash.
更令人担心的是，盖特纳先生的语焉不详，万一是因为连他自己都不敢肯定该做什么，不敢下死决心，不敢向国会要求足够的资金，那可怎么办？
We may still be some way from having lifelike humanoid robot helpers, but there's no doubt robots are getting more helpful, friendly and domesticated.
我们可能仍然有办法从具有逼真的仿人机器人帮手，但毫无疑问，机器人正变得越来越乐于助人，友善和驯化。
We may still be some way from having lifelike humanoid robot helpers, but there's no doubt robots are getting more helpful, friendly and domesticated.
我们可能仍然有办法从具有逼真的仿人机器人帮手，但毫无疑问，机器人正变得越来越乐于助人，友善和驯化。
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