Immutable data is a key aspect of many languages that focus on concurrency because it has such nice properties.

不可变数据是许多侧重于并发性的语言的关键方面，因为它有如此好的属性。

youdao

XML as a format has a lot of nice properties; it is a perfectly general way of representing arbitrary data structures, and it is human readable (more or less).

XML作为一种格式具有许多优良的特性；它是表示任意数据结构的完美通用方法，并且它是人可读的(或多或少的)。

youdao

Then, we create a Speaker instance with two nice shortcuts for initializing the name and talks properties, and for creating a list of talk instances.

然后，我们创建了一个Speaker实例，用两个优美的捷径来初始化name和talks属性，并创建了一个talk实例的列表。

youdao