precious是什么意思？

The brain is a seemingly endless library, whose shelves house our most precious memories as well as our lifetime's knowledge.

It keeps our most precious memories until life's end.

Contemporary artists have followed this tradition to create eggs that speak to the anxieties of our age: Life is precious, and delicate.

In college, time is scarce, and consequently, very precious.

Genuine criticism creates a precious opening for an author to become better on his own terms—a process that is often extremely painful, but also almost always meaningful.

Bringing back unneeded equipment would have used up precious resources such as fuel.

Certainly, you don't want to waste your precious hours on following the developments in a disorderly fashion, and miss important deadlines, confuse interview times or forget to follow up as a result.

Genuine criticism creates a precious opening for an author to become better on his own terms— a process that is often extremely painful, but also almost always meaningful.

Just lengthening that second stage of full-time work may secure the financial assets needed for a 100-year life, but such persistent work will inevitably exhaust precious intangible assets such as productive skills, vitality, happiness, and friendship.

Wasting food means losing not only life-supporting nutrition but also precious resources, including land, water and energy.

Time has become more precious

Once purchased and trained, this would allow the casual user to save money and time, freeing up precious space in our busy lives to read a good book.

Some of our all too precious time is being stolen.