cháng​bèi​bù​xiè

to be always on alert

Senses

常备不懈/ 常備不懈 cháng​bèi​bù​xiè (also cháng​bèi​bú​xiè) to be always on alert

to be constantly prepared and never relax one's guard

References

synonym 常备不懈/常備不懈 枕戈待旦/枕戈待旦
antonym 常备不懈/常備不懈 临阵磨枪/臨陣磨槍