atonic
[eɪˈtɑ:nɪk]
adj.
无口音[无重音]的;
（身体）无张力的，松弛的;
例句:
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Flaccid constipation is characterized by a lazy or atonic intestinal muscle.
无张力性便秘的特点是肠内肌肉松弛无力.
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Atonic seizures: An independent epilepsy type or epilepsy syndrome?
失张力发作: 一独立的癫痫类型或癫痫综合征?
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An atonic syllable carries no stress.
清音节是不重读的音节.