交集 jiāojí HSK7 common ground Definitions Defs Origin Strokes Stroke Words Sentences Sents Showing: intersection All meanings 2 jiāojí 2 common ground 1intersection 1 1 sentence for 交集 (jiāojí — intersection) 这两个集合的交集为空集。 zhè liǎng gè jíhé de jiāojí wéi kōngjí. The intersection of these two sets is an empty set. Source: Dong Chinese Dictionary