对于非正式会议，我们可以穿得随意些。

For the casual meeting, we can dress ___informally.

在我们办公室，周五我们穿得非常随意。

In our office, we dress very ___informally on Fridays.

他非正式地与员工交谈，营造了轻松的氛围。

He spoke ___informally to the staff, creating a relaxed atmosphere.