Original acquisition comprises making things, taking possession of ownerless things.

原始取得包括造物，占有无主物。

youdao

Do not be tempted to collect ownerless articles on the ground and beware of any strangers who approach you on such an excuse. It may be a fraud.

不要贪财，不要捡拾地上不明物品，并提防街上籍此接近你的陌生人，谨防上当受骗。 。

youdao

The written application shall clearly state the type and quantity of the property as well as the reasons for applying for ascertaining the ownerless property.

申请书应当写明财产的种类、数量以及要求认定财产无主的根据。

youdao

The law states that if freehold land becomes ownerless in the UK, it can pass into the ownership of the monarch in a process called "escheat".

BBC: Beds, Herts & Bucks