hour
each of the twenty-four time periods that exist in a day and each time period is made up of sixty minutes

小时, 钟头

[名词]
group
a number of things or people that have some sort of connection or are at a place together

组, 群

[名词]

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each of the twenty-four time periods that exist in a day and each time period is made up of sixty minutes
小时, 钟头
a number of things or people that have some sort of connection or are at a place together
组, 群