波及 bōjí to spread to
to spread to; to involve; to affect
How to remember 波及: 波 waves + 及 reach = to spread to.
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How it is used
- Means to spread to and affect others - 危机波及全球 (wēijī bōjí quánqiú) the crisis spread to the whole world.
- The image is ripples reaching outward, so it's about a problem/event extending its impact to more people or areas.
- Almost always negative (crises, scandals, disasters); the subject harms/reaches the object indirectly.