Analysis: Two people expect each other and wait for each other.

Other mathematical term riddles:

1, two cows fight (guess math nouns)-diagonal

2, 30 points (mathematical terms)-triangle

Goodbye, mom (mathematical term)-denominator

4. Similarity (mathematical term)-approximation

5. Grandpa is wrong (guess the math term)-tolerance

Extended data:

One of the riddle styles:

Mainstream: Most of these puzzles are produced in a certain period and occasion, and they are specially created for a certain need. Its characteristics are prominent theme, serious content, strong pertinence and remarkable effect. Although the themes are different, they all have mainstream characteristics. Here are some examples to illustrate:

China is taking off. The answer is: sublimation.

The French open is long and sparse, but it does not leak. Answer: It's all Luo Cheng.