someone who disagrees with a system, plan, etc. and intends to put an end to it or change it
对手, 反对者
to experience a powerful and enduring longing or yearning for something or someone who is absent
渴望, 思念
a mechanical device or machine that is used to move fluids or gases from one place to another by creating a flow or pressure
泵, 抽送设备
a hormone that is produced by the body when one feels stressed, scared or excited, which increases one's heart rate, breathing, and energy
肾上腺素
to suddenly and violently break open or apart, particularly as a result of internal pressure
爆裂, 破裂
the quality of being suitable or appropriate for a particular purpose or situation
适合性, 适当性
a type of exercise that is designed to make one's lungs and heart stronger, often performed with music
有氧健身
an object that has a certain amount of mass, and is used when exercising or measuring something
重量, 质量
the act of walking in a way that is very fast and both feet are never on the ground at the same time, particularly as a sport
跑步, 竞技跑
used when naming, or giving description or information about people, things, or situations
是, 存在
referring to a situation in which teams, players, etc. are trying to defeat their rivals
竞争的, 竞赛的
a stationary machine for taking exercise that can be pedaled like a bicycle
健身单车, 室内自行车
to exceed the usual or maximum level of something, such as one's physical or mental capabilities, a safety standard, or a legal boundary
to participate in a game or sport to compete with another individual or another team
玩, 参加
a physical activity in which a group of people work together to achieve a common goal or objective such as rugby or volleyball
团队运动, 集体运动
used to refer to someone who is starting to get or feel better after a period of illness or injury
to re-engage in an activity or situation after being away from it for some time
重新参与, 回归
another chance for someone to become more healthy, energetic, or adopting a more optimistic view on life