One area that virtually nobody foresaw is electronic flea markets (e-flea?). On-line auctions of second-hand goods have become a massive industry.

一个领域，几乎没有人预计到的是电子跳蚤市场。在线拍卖二手货物已变成一个巨大的产业。

youdao

Is there any sign of flea issues often signified by "flea dirt," small black specks, or the actual presence of a flea?

有没有跳蚤的迹象？跳蚤迹象的提示为“跳蚤污垢，”黑色的小斑点，或实际存在的跳蚤。

youdao

This product is a contact insecticide, which kills fleas within 24 hours, avoids flea biting and oviposition, effective controls the flea allergic dermatitis and breaks the flea life cycle.

本品为接触性杀虫方式，在24小时内杀死跳蚤，避免跳蚤叮咬及产卵，有效控制跳蚤过敏性皮肤炎，并阻断跳蚤生活史。

youdao

He and I share a love for the bygone Chelsea and Manhattan flea markets of yore, and agreed that the idea of a Brooklyn Flea had legs.

BBC: Treasure-hunting at Brooklyn Flea

It showed the distribution of the most common varieties including the human flea (Pulex irritans), the dog flea (Ctenocephalides canis) and the cat flea (Ctenocephalides felis).

BBC: Who, What, Why: Have flea numbers jumped?

In our house, every plate, glass and fork was from some Brooklyn flea market.

WSJ: In Defense of the Mashup Meal