英语翻译
1.Ahead of his time,the English painter James Turner had created impressionist landscapes long before the works of artists like Claude Monet popularize the movement.
2.The corner of the desk provides a partial barrier should one person begin to feel threatened.(should 在这儿的用法怎么理解?)
麻烦好心人具体说一下有什么语法或固定用法吧!