week的形容词形式是？

I have to provide weekly reports to my line manager.

我必须每周向部门经理汇报。

Each course comprises 10-12 informal weekly meetings.

每门课程包括10至12次每周1次的非正式见面会。

The menu changes weekly and usually includes a vegan option.

这份菜单每周变化，而且通常包括纯素菜肴供选择。