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1·Crank up the power, and it can emit a warning tone so loud that anyone in its path would have no choice but to cover their ears and run.

加大功率，就能发出一种警告的音调，这种音调非常之大，在它的所及范围之内的任何人听到都只能捂起耳朵逃跑。

2·The friend began warning others, Katy is' 1.1. ' the number refers to a sliding Tone Scale of emotional states that Hubbard published in a 1951 book, the Science of Survival.

那个朋友开始警告其他人，“凯蒂是1.1”，这个数字来自哈伯德1951年出版的《幸存的科学》书中所提出的情绪标度等级表。

3·Excessive complaining - even in a civil tone - after a warning has been issued.

在已经被警告之后，仍然过分抱怨，即便使用文明的语气也不行。

4·His tone conveyed a warning.

他的语气透露着警告。