godsend

godsend: a very helpful or valuable event, person, or thing
【godsend】godsend for/to
对平摊账单来说,微信支付是个不可多得的好工具。
WeChat Pay is a godsend for splitting the bill.
(参考翻译:When it comes to splitting the bill, WeChat Pay is a godsend.)
Her boyfriend was a godsend when she was ill.
Taobao is a godsend for small manufacturers to distribute goods.

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