They often come up for sale, but this more intimate and later artwork is quite rare and very collectable.
希特勒的画作常被拍卖，但这张卡片显得更为亲切，并且非常罕见，收藏价值很高。
Among other things, the collector examines the class loader data structures to determine which classes are live -- that is, are not garbage collectable.
在众多的事情当中，收集器检查类装入器的数据结构，来判断哪个类是活动的 —— 也就是说，不应当被当作垃圾收集的。
Another popular method is to buy historic or mint gold coins that, due to their collectable nature, have a value greater than their pure precious metal content.
另一个比较流行的方式就是购买历史性的或者数量巨额的金币，由于他们具有的收藏价值，他们往往高于自身金属含量的价值。
adj. collect、 collective、 collected、 collectivist、 collectible
adv. collect、 collectedly
n. collection、 collective、 collectivism、 collector、 collectivist、 collectivization
v. collected
vi. collect
vt. collect、 collectivize