Meaning and Usage
The term "外来" (wàilái) literally means "coming from outside" and is commonly used to describe things or people originating from outside a particular place or system. It often refers to foreign or imported elements, such as diseases, cultures, or populations.
Common Contexts
- Medical: "外来疾病" refers to diseases that are imported or not native to the local area.
- Cultural: "外来文化" denotes foreign cultures influencing local traditions.
- Demographic: "外来人口" means migrant or non-native population in a city or region.
Collocations and Patterns
- 外来疾病 (imported diseases): used in medical contexts.
- 外来文化 (foreign culture): used when discussing cultural influence.
- 外来人口 (migrant population): used in social and demographic discussions.
Usage Notes
When using "外来," the speaker emphasizes the origin from outside the local or native environment. It is often neutral but can carry connotations depending on context, such as novelty, foreignness, or sometimes disruption. It is different from "外国" which specifically means "foreign country." "外来" can refer to any external origin, not necessarily a foreign nation.
Avoid confusing "外来" with "外面" (outside as a location) or "外地" (other places), as "外来" focuses on origin or source rather than physical location.