VOA慢速英语:美国重新定义高血压

classify – v. to arrange (people or things) into groups based on ways that they are alike : to consider (someone or something) as belonging to a particular group

systole – n. the contraction of the heart by which the blood is forced onward and the circulation kept up : systolic – adj.

systolic blood pressure – medical noun the highest arterial blood pressure of a cardiac cycle occurring immediately after systole of the left ventricle of the heart — called also systolic pressure;

diastole – n. the dilatation of the cavities of the heart during which they fill with blood : diastolic – adj.

diastolic blood pressure – medical noun the lowest arterial blood pressure of a cardiac cycle occurring during diastole of the heart — called also diastolic pressure

resistance – n. a force that slows down a moving object (such as an airplane) by going against the direction in which the object is moving

category – n. a group of people or things that are similar in some way

edition – n. the form or version in which a text is published