如何使用 "strenuous" 造句

1. Exercise doesn 't need to be strenuous in order to be beneficial .
为了有益锻炼不需要费力。
2. Training for a marathon is extremely strenuous .
为马拉松做准备是非常艰苦的。
3. Avoid strenuous exercise the day before so you go into your run with fresh legs .
避免在长距离跑之前做费力的训练,这样你就可以双腿充满活力的开始了。
4. Pregnant women should avoid all strenuous activities , but sewing is not one of them .
怀孕的女人应该避免所有繁重的活动,但是针线活不属于这种。
5. In fact , preparing baby food at home is not a strenuous task .
事实上,在家里准备婴儿食品也不是一件吃力的工作。