translate some "untranslated" titles in Chinese.

_zh-cn/overviews/scala3-book/taste-collections.md

@@ -1,5 +1,5 @@
 ---
-title: Collections
+title: 集合
 type: section
 description: This page provides a high-level overview of the main features of the Scala 3 programming language.
 language: zh-cn

_zh-cn/overviews/scala3-book/taste-contextual-abstractions.md

@@ -1,5 +1,5 @@
 ---
-title: Contextual Abstractions
+title: 上下文抽象
 type: section
 description: This section provides an introduction to Contextual Abstractions in Scala 3.
 language: zh-cn

_zh-cn/overviews/scala3-book/taste-functions.md

@@ -1,5 +1,5 @@
 ---
-title: First-Class Functions
+title: 头等函数
 type: section
 description: This page provides an introduction to functions in Scala 3.
 language: zh-cn

_zh-cn/overviews/scala3-book/taste-methods.md

@@ -1,5 +1,5 @@
 ---
-title: Methods
+title: 方法
 type: section
 description: This section provides an introduction to defining and using methods in Scala 3.
 language: zh-cn

_zh-cn/overviews/scala3-book/taste-summary.md

@@ -1,5 +1,5 @@
 ---
-title: Summary
+title: 总结
 type: section
 description: This page provides a summary of the previous 'Taste of Scala' sections.
 language: zh-cn
@@ -26,7 +26,7 @@ permalink: "/zh-cn/scala3/book/:title.html"
 - 如何将对象用于多种目的
 - [上下文抽象][contextual]的介绍
 
-我们还提到，如果您更喜欢使用基于浏览器的游乐场环境而不是 Scala REPL，您还可以使用[Scastie.scala-lang.org](https://scastie.scala-lang.org/?target=dotty) 或 [ScalaFiddle.io](https://scalafiddle.io)。
+我们还提到，如果您更喜欢使用基于浏览器的游乐场环境而不是 Scala REPL，您还可以使用[Scastie](https://scastie.scala-lang.org)。
 
 Scala还有更多功能在这次旋风之旅中没有涵盖。
 有关更多详细信息，请参阅本书的其余部分和[参考文档][reference]。

_zh-cn/overviews/scala3-book/taste-toplevel-definitions.md

@@ -1,5 +1,5 @@
 ---
-title: Toplevel Definitions
+title: 顶层定义
 type: section
 description: This page provides an introduction to top-level definitions in Scala 3
 language: zh-cn