常备不懈的英文单词
“常备不懈”对应的英文单词有：be always vigilant、always be on the alert、be on one's toes all the time ，一共3个，具体意思及用法如下：
be always vigilant常备不懈
always be on the alert常备不懈
be on one's toes all the time常备不懈
“常备不懈”对应的英文单词有：be always vigilant、always be on the alert、be on one's toes all the time ，一共3个，具体意思及用法如下：
be always vigilant常备不懈
always be on the alert常备不懈
be on one's toes all the time常备不懈