Premature ventricular contraction
[医]心室早发性收缩
🧩 词语组成解析
a. 心室的, 膨胀的
contraction
[kən'trækʃən]
n. 收缩，缩减;[语]缩略，略体，缩写;（开支等）缩减;（分娩时）子宫收缩;
🗣️ 情景例句
John Marchetta.
我是 ，John Marchetta。
John had a rough time last night.
约翰昨晚好像挺轰轰烈烈的样子。
Moondwellers will be able to fly in space at only three percent of the cost of similar journeys by their terrestrial cousins.
月球居民在太空遨游的费用仅是地球上朋友飞越同样路所需费用的3%。