Undograph
(自记)测波仪
🗣️ 情景例句
What-are you doing?
你在做什么？
This nation is noted for its scientific accomplishments.
这个国家以科学成就闻名。
certainly it is more difficult than the arts which involve appreciation of flat forms,
欣赏雕塑品当然比欣赏平面的艺术品要难。