s. of high worth or cost
r. extremely
a. 宝贵的, 珍贵的, 过于精致的, 珍爱的
1. Time is precious, so we should use it wisely.
时间是宝贵的,所以我们应该明智地利用它。
2. She gave him a precious gift for his birthday.
她给了他一份珍贵的生日礼物。
3. Their friendship is too precious to lose.
他们的友谊太珍贵了,不值得失去。