Usage of 发出
The verb 发出 (fāchū) primarily means 'to send out' or 'to emit.' It is commonly used to describe the emission of sounds, signals, light, or other forms of output from a source. For example, machines or alarms 发出 sounds, and people can 发出 invitations or orders.
Common Collocations
- 发出声音 (emit sound): used when something produces noise or sound.
- 发出信号 (send out a signal): used in technical or communication contexts.
- 发出邀请 (send out an invitation): used socially when inviting others.
Nuances
发出 often implies an active process initiated by the subject. It is more formal than simply 出声 (to make a sound) and can be used in both literal and figurative contexts. Avoid confusing 发出 with 发 (to send) alone, as 发出 emphasizes the action of sending or emitting outward.
Register
This verb is neutral and suitable for both spoken and written Chinese, including formal contexts.