They could be traded illegally. They would lose popularity.

它们会被非法售出，失去人气。

youdao

Concern that Web 2.0 is merely a buzzword or a fad, and like all fads, it will lose popularity as quickly as it gained it.

担心Web 2.0只不过是一时的流行，和所有的流行事物一样，流行得快，失宠得也快。

youdao

The support of women for his regime was vital and he feared that, like a Hollywood star, he would lose popularity with women if it emerged that he was no longer available.

由于妇女们对他的统治是至关重要的，他害怕如果让人知道他变得可望而不可及，他会像好莱坞明星那样，对妇女们的魅力将不复存在。

youdao

If schools expand too fast, they will lose popularity and pupils and be forced to shrink.

ECONOMIST: Education, education, education

Frank Newport, the editor-in-chief of the Gallup Poll, notes that most presidents lose popularity after their election.

ECONOMIST: Of polls and presidents

It may equally have to subject its armed militias to the PA's collective decisions and may start to lose popularity as it grapples with the mundane difficulties of government.

ECONOMIST: Palestinians at the polls | The