1. 连续不断的；未被打断的；完整的；未破损的
If something is unbroken, it is continuous or complete and has not been interrupted or broken.

1. not broken
whole and intact
in one piece

e.g. fortunately the other lens is unbroken

2. (especially of promises or contracts) not violated or disregarded

e.g. unbroken promises
promises kept

Synonym: kept

3. marked by continuous or uninterrupted extension in space or time or sequence

e.g. cars in an unbroken procession
the unbroken quiet of the afternoon

4. (of farmland) not plowed

e.g. unplowed fields
unbroken land

Synonym: unplowedunploughed

5. not subdued or trained for service or use

e.g. unbroken colts