我们能换一下座位吗？我想坐在窗边。

Could we ___swap seats? I'd like to sit by the window.

在线论坛是交流想法和专业知识的绝佳场所。

Online forums are great places to ___swap ideas and expertise.

她提出用她的吉他课来交换我的烹饪课。

She offered to ___swap her guitar lessons for my cooking classes.