teaching aids

同根派生

英汉例句

• She used slides as a teaching aid.
  她用幻灯片作教学工具。
• Photographs make useful teaching aids.
  照片是有用的教具。
• The CD-ROM is easy to use directly as a teaching aid in classroom.
  在课室直接使用光碟作教材是否容易?
• Except blackboard and chalk, unbrella is their needed teaching aid.
  除了黑板和粉笔,雨伞成为必备的教具。
• The blackboard is a primitive teaching aid used for centuries.
  黑板是一种原始的教学辅助工具，已经被使用了数百年了。