以备不时之需 Rainy day ; for a rainy day ; against a rainy day ; For unexpected needs
存钱以备他日之需 put aside
他们可以备不时之需 They can prepare for contingencies
储蓄以备不急之需 Put money aside for a rainy day
存钱以备不时之需 put sth by
以备之需
Just in case
以上为机器翻译结果，长、整句建议使用 人工翻译 。
youdao
你可以买保险以备治疗患病之需。
You can hedge against illness with insurance.
《柯林斯英汉双解大词典》
朱莉想留出一些钱去度假或是存些钱以备专门之需。
Julie wanted to put some of her money aside for holidays or save up for something special.
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