The buttons that appear to the right and left of the URL bar provide a way to access Maemo's task selector and quit the program.
用户可以分别通过地址栏左右的按钮访问任务管理器和退出程序。
2
The result selector therefore has access to every element of the first collection.
因此，结果选择器可以访问第一个集合的每个元素。
3
This differs from the result selector in a non-group join, which cannot access elements from the first collection that have no match in the second collection.