| 字词 | 常备不懈 |
| 释义 | 常备不懈 cháng bèi bú xiè keep to the concept of all-time preparedness; be on one's toes all the time; always be on the alert; be always vigilant; be prepared at all times; be ever prepared against war: 他们一直处于常备不懈状态以防突然袭击。 They were constantly on the alert not to be taken by surprise. |
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