| 词汇 | cardio | 
| 释义 | cardio  noun [ U ]  informal uk/ˈkɑː.di.əʊ/ us/ˈkɑːr.di.oʊ/  可提高心跳频率的运动;有氧运动 physical exercise that increases the rate at which your heart works  My workout usually includes 15 to 20 minutes of cardio. 我的健身运动通常包括15-20分钟的有氧运动。   cardio exercises/training/workouts 有氧练习/训练/运动  cardio-  prefix uk/kɑː.di.əʊ-/ us/kɑːr.di.oʊ-/ (also cardi-)  心脏的;心脏病的 of the heart  cardiovascular 心血管的  | 
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