contractions的音标？

n.收缩( contraction的名词复数 )，缩减，缩略词，（分娩时）子宫收缩...

Foods and fluids are mixed in the stomach by its muscular contractions.通过胃部肌肉的收缩食物和流质在胃中混合。Contractions are much more common in speech than in writing.缩略词在口语里比在书写中常见得多.Muscle contractions are powered by the chemical aden...