to experience a powerful and enduring longing or yearning for something or someone who is absent

渴望, 向往
to infuse or inject something, such as energy, resources, or vitality, into a system, environment, or situation

注入, 灌输
a body hormone produced in case of anger, fear, or excitement that makes the heart beat faster and the body react quicker

肾上腺素, 肾上腺激素
a sudden, brief increase or surge of activity, force, or energy, often happening quickly and intensely

爆发, 突发
the quality of being suitable or appropriate for a particular purpose or situation

适合度, 合适性
education or instruction provided in a series of lessons or meetings, often held regularly

课程, 班级
to perform an action that is not mentioned by name

做, 干
a type of exercise that is designed to make one's lungs and heart stronger, often performed with music

有氧运动, 气功
to move a thing from a lower position or level to a higher one

提起, 举起
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, 奔跑
used when naming, or giving description or information about people, things, or situations

是, 成为
referring to a situation in which teams, players, etc. are trying to defeat their rivals

竞争激烈的, 具有竞争性的
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

比赛, 参与比赛
a physical activity in which a group of people work together to achieve a common goal or objective such as rugby or volleyball

团体运动, 团队运动
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
