Ultrared
a. 红外线的
✅ 同义词
🔤 词根
ultra-表示“超过”
🌿 同词根单词
🗣️ 情景例句
To help us make this transaction possible,
是的，为了促成这笔交易，
A man has his hour, and a dog has his day.
人有称心时，狗有得意日。
To get a full appreciation of what this means we must turn first to some recent human inventions.
要透彻理解这句话的意义，我们应先回顾一下人类最近的几项发明。