俯卧撑锻炼手臂肌肉的运动，运动时脸部朝下卧着并把手掌撑在地面上并且用胳膊推动身体上下运动。
An exercise for strengtheningarm muscles performed by lying face down with the palms on the floor, and pushing the body up and down with the arms.
锻炼期间我们要注意肩部，手臂，腹部，后背，腿部的肌肉，以及心脏，肺和血管。
The parts of the body that require special attention are the muscles of the shoulder and arms, abdomen and back, legs, and the heart, lungs and blood vessels.
人们通常不会在日常的活动中锻炼他们手臂肌肉的“有氧能力”。
People usually do not have a daily activity where their arm muscles exercise 'aerobically'.
有氧运动就是有节奏的、持续的活动。它需要耗氧并且锻炼像手臂和腿部的大块肌肉。
Aerobic exercise is any rhythmic and continuous activity that USES oxygen and large muscle masses of the body, such as the arms and legs.
马克：我经常去体操馆锻炼。举重可以锻炼手臂和肩膀的肌肉，不是吗？
Mark: I often go to a gym for a workout. Lifting weights will build arm and shoulder muscles, won't it?
举重可以锻炼手臂和肩膀的肌肉，不是吗？
Lifting weights will build arm and shoulder muscles, won't it?
举重可以锻炼手臂和肩膀的肌肉，不是吗？
Lifting weights will build arm and shoulder muscles, won't it?
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