例句：
She exercises two or three times a week.
她一周鍛煉兩三次。
Let's start off with some gentle exercises.
我們先來做點(diǎn)強(qiáng)度小的練習(xí)。
These exercises will help to keep you supple.
這些鍛煉項(xiàng)目有助于你保持身體的柔韌性。
It is important never to overdo new exercises.
重要的是，千萬不要過度進(jìn)行一項(xiàng)新的鍛煉。