亚历克斯一时因愤怒和绝望几乎说不出话来。
瓦伦坦泰因说，理论上，这可以创造一个足够高的温度来产生过热蒸汽。
In theory, says Valentijn, this can create a high enough temperature to generate superheated steam.
小组讨论时，很多人从来没有表达他们的意见，因为他们担心人们会因自己说的一些愚蠢的话来评判他们。
During group discussions many people never express their opinions because they're afraid that people will judge them for their saying something stupid.
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