1. Python is a popular programming language for data analysis and machine learning.
Python 是一种流行的编程语言，用于数据分析和机器学习。

2. Java is a versatile programming language that is used for developing web applications and mobile apps.
Java 是一种多功能的编程语言，用于开发网络应用和移动应用。

3. C++ is a powerful programming language commonly used for system programming and game development.
C++ 是一种强大的编程语言，通常用于系统编程和游戏开发。

4. Ruby on Rails is a popular web development framework built on the Ruby programming language.
Ruby on Rails 是一个流行的 Web 开发框架，建立在 Ruby 编程语言之上。

5. JavaScript is a scripting language commonly used for client-side web development.
JavaScript 是一种用于客户端 Web 开发的脚本语言。

6. Swift is a programming language developed by Apple for iOS and macOS app development.
Swift 是由苹果开发的编程语言，用于 iOS 和 macOS 应用程序开发。