fundraising event
fundraiser
fundraising campaign
Fund-raising is a distinctively American thing, since U.S. schools rely heavily on donations.
I do think twice a year the museums should organize money raising events to help pay for the cost of staying open.

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Open the tool →筹款活动 (chóu kuǎn huó dòng) means “fundraising event, fundraiser, fundraising campaign”.
筹款活动 is pronounced chóu kuǎn huó dòng in Mandarin Chinese.
“fundraising event” is 筹款活动 (chóu kuǎn huó dòng) in Chinese.
This page has 2 example sentences using 筹款活动, each with pinyin and an English translation.