be sparing of的用法和樣例：
例句
- A saving of 30% is obtainable under this scheme.
按這一計劃做可以獲得百分之三十的節約率。 - It saves a lot of time to travel by air.
乘飛機旅行節約很多時(shí)間。
- She takes great care of her clothes.
她非常愛(ài)惜自己的衣服。 - Everyone cherishes his life, but few of them treasure their time.
沒(méi)有人不愛(ài)惜他的生命，但很少人珍視他的時(shí)間。
