VOA慢速英语:研究称长时间在太空中会使心脏缩小

ventricle – n. either of two small, hollow spaces on each side of the heart that force blood into tubes leading from the heart to other parts of the body

adapt – v. to change to become suitable for a new situation

impact – n. a powerful or major influence or effect

respond – v. to answer or reply

benefit – n. a helpful or good effect

function – n. the natural purpose of something

encourage – v. to make (someone) more determined, hopeful, or confident