Adjective:

1. marked by continuous or uninterrupted extension in space or time or sequence;

   "cars in an unbroken procession"
   "the unbroken quiet of the afternoon"
   

2. not subdued or trained for service or use;

   "unbroken colts"
   

3. (of farmland) not plowed;

   "unplowed fields"
   "unbroken land"
   

4. (especially of promises or contracts) not violated or disregarded;

   "unbroken promises"
   "promises kept"
   

5. not broken; whole and intact; in one piece;

   "fortunately the other lens is unbroken"
   

constantadj.不变的；经常的n.常数；恒量

continuousadj.连续的；继续的；连绵不断的

steadyadj.稳定的；稳固的；坚定的v.使稳固；使稳定；(变得)稳固；使坚定adv.稳定地，稳固地n.关系固定的情侣 ；固定支架

uninterruptedadj.不中断的；不停的；未受干扰的

perpetualadj.永久的；永恒的；一再往复的

evenadj.平坦的；平和的；偶数的；相等的adv.甚至；正当；更；恰好v.使平坦；相等

regularadj.有规律的；定期的；经常的；正规的；整齐的；规则的

wholeadj.全部的；整体的；完整的n.全部；整体；完整adv.完全

ceaselessadj.不绝的；不停的

successiveadj.连续的；接连的；接二连三的

incessantadj.不断的；无尽的

continualadj.不断的；频繁的；连续的

completeadj.完整的；完成的；彻底的vt.完成；使完美；使圆满；填（表格等）

endlessadj.无止境的；没完没了的

keptadj.保存的；被人供养的动词keep的过去式和过去分词.

unplowedadj.(田地)未犁过的；未耕的

unploughedadj.(田地)未犁过的；未耕的

brokenadj.弄坏的；破碎的动词break的过去分词.

1. He had ten hours of unbroken sleep.
   他连续睡了十个小时。
2. I pray for this heart to be unbroken .
   我祈祷这颗心永远不碎.
3. But when I came to open it I found that the seal was unbroken.
   但在取信时，我发现封口还没有拆开。
4. There is unbroken silence in the woods.
   林中一直静寂无声。