名词
中文翻译：扩张
同义词：
['expansion', 'expansion', 'dilation']
例句：
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1.The heart's chambers gradually expanded to accommodate the baby's growth.
心脏的腔室逐渐扩大以适应婴儿的生长。
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2.During the process of dilation, the blood vessels are stretched and strengthened.
在扩张过程中，血管被拉伸并加强。
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3.The uterus begins to dilate as the pregnancy progresses.
随着怀孕的进展，子宫开始扩张。