无边无际 wúbiān-wújì boundless
(idiom) boundless; limitless
How to remember 无边无际: 无 have not + 边 side + 际 border = boundless.
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How it is used
- Idiom: boundless / stretching without end - 无边无际的大海 (wúbiān-wújì de dàhǎi) the boundless sea, 无边无际的草原 (wúbiān-wújì de cǎoyuán) endless grassland.
- For vast physical expanses (sea, sky, desert) and, figuratively, limitless imagination. More vivid than plain 无限 (wúxiàn).