Xiǎoxuéshēng men zài cāochǎng shàng jǔxíng rùduì yíshì.
The primary school students held an enrollment ceremony on the playground.
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culture
入队 often refers specifically to joining the Young Pioneers (少先队, Shào Xiān Duì), a rite of passage for Chinese primary school students, typically marked by a ceremony where children receive their red scarves.
