1, making noise or sound (such as using sound or appliances); To produce the auditory effect, we must first teach the horn messenger how to make the horn sound.

2. Make a sound from your throat. That parrot never makes a sound.

Make sentences with pronunciation:

1. After the test, the system automatically judges whether the vibration of the three-ring reducer is within the required range. For unqualified products, the single chip microcomputer system automatically starts the acousto-optic alarm system and makes corresponding unqualified records.

This reorganization may prove to investors that Baidu is actively taking actions to ensure its growth, but the company needs to do more than just make a statement.

Most people who have no tongue can't overcome a series of troubles caused by their inability to speak, and then stay in their previous positions all their lives.

4. Male walruses attract the attention of female walruses by making loud sounds, including underwater bells, ticking and pulse sounds, as well as teeth clicking and whistling on the water.

5. Hartmann Hydrodynamic Sound Wave Generator is an acoustic processing sound generator, which has the characteristics of low cost, simple structure, durability and convenient power supply.

6. Sound generators in the research object of music archaeology include "pre-musical instruments" and musical instruments.

Yes, dear. Stop talking, singing or making sounds.