表示以备不时之需的英文单词
“以备不时之需”对应的英文单词有：for unexpected needs、against a rainy day、in case of need ，一共3个，具体意思及用法如下：
for unexpected needs以备不时之需
against a rainy day未雨绸缪地；以备不时之需
in case of need以备不时之需
与以备不时之需相关的短语
存钱以备不时之需put sth by
以备行动不时之需to assist in operational support