“材料”造句

不用说，所有这些都是从电台报道中采集来的二手材料。
All this, needless to say, had been culled second-hand from radio reports.

这份材料里只有一些已公开的、非保密性质的信息。
The material consisted only of already published, unclassified information.

把你需要的工具和材料开一张单子。
Make a checklist of the tools and materials you will need.

• #材料