发明与科技相关词汇 — 英语填空题
题目
根据中文释义写出正确的单词，补全句子。1. The ________（轮子）is one of the most important inventions in history. 2. You can send messages quickly with a ________（智能手机）. 3. This new ________（机器人）can help people clean the house. 4. Edison ________（发明）the light bulb many years ago.