保持健康

• keep fit
• kept fit
• stay healthy
• keep healthy

例句

1. 怀特先生每天早晨锻炼半个小时以保持健康。
   Mr White keeps fit by working out for half an hour every morning.
2. 通过节食和运动来保持健康
   Keeps fit with diet and exercise.
3. 我经常努力锻炼身体以保持健康。
   I work out regulary to keep fit.
4. ｀你是怎样保持健康的？＇｀我经常上健身课。＇
   `How do you stay so fit?' `I go to keep-fit classes.'