会议采用了基于讨论的格式以鼓励参与。

The conference adopted a discussion-based ___format to encourage participation.

精装和平装都有，您有偏好的格式吗？

Both hardcover and paperback are available; do you have a preferred ___format?

发送前请将文档转换为PDF格式。

Please convert the document to PDF ___format before sending.