mass noun
1- a quantity of precious metals, gems, or other valuable objects财富, 珠宝。
1.1
- count noun a very valuable object珍品：
she set out to look at the art treasures.
她去看艺术珍品。
1.2
- count noun informal a person whom the speaker loves or who is valued for the assistance they can give〈非正式〉可爱的人, 难得的人（帮手）：
the housekeeper is a real treasure - I don't know what he would do without her.
这个管家真是难得——我不知道如果离开了她, 他该怎么办。
with obj.
1- keep carefully (a valuable or valued item)珍藏（贵重物品）。
1.1
- value highly珍视, 珍爱：
the island is treasured by walkers and conservationists
这个岛屿得到步行者和环保主义者的珍爱
as adj. treasured his library was his most treasured possession.他的藏书室是他最宝贵的财产。
词源
Middle English: from Old French tresor, based on Greek thēsauros （see THESAURUS）.