心尖搏动

apex impulse的用法和样例：

例句

On examination, he has a resting tachycardia and eidence of left entricular dilatation with a displaced apex beat and possible secondary mitral regurgitation.体检发现有静息时心动过速与左心室扩大依据，心尖搏动偏移，可能有二尖瓣返流。

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学英语单词

bart's syndrome(congenital localized absence of skin)

bicelle

bio-aeration

bioabsorbable