小测验：选择正确的单词

1. She looked like a princess in a 19th-century illustration.
   她像一个19世纪插图中的公主。
2. A rock falling to the ground is an illustration of gravity.
   石块落地是地球引力的一个实例。
3. Line negative: Negative of line illustration or text.
   线条阴片:只具线条画或字体的阴片。
4. He pointed his remarks with apt illustrations.
   他用贴切的例子来强调说明自己的话。
5. Poignant illustrations supplementing the text.
   为补充课文而加的贴切的插图

　4个名词解释