我记得有一次，我们在谈持久化对象存储的事情，说来说去都是对象的序列化和访问机制。

I remember on one occasion, we were talking about building a persistent object store. It was all about object serialization and access mechanisms.

youdao

在一次拖放操作中可能只有一个源对象和一个目标对象，但是可能会有多个拖放候选对象。

There can only be one source and one target in a drag, but there may be many drop candidates.

youdao