4 sentences for 集合 (jí​hé — set)

1. 这两个集合的交集为空集。

   zhè liǎng gè jí​hé de jiāo​jí wéi kōng​jí.

   The intersection of these two sets is an empty set.

   Source: Dong Chinese Dictionary

2. 这个集合由五个元素组成。

   zhè​ge jí​hé yóu wǔ gè yuán​sù zǔ​chéng.

   This set consists of five elements.

   Source: Dong Chinese Dictionary

3. 他在数学课上学习了关于集合的知识。

   tā zài shù​xué kè shàng xué​xí le guān​yú jí​hé de zhī​shi.

   He learned about sets in his math class.

   Source: Dong Chinese Dictionary

4. 数学老师强调，真子集才是原集合真的子集。

   shù​xué lǎo​shī qiáng​diào, zhēn​zǐ​jí cái shì yuán jí​hé zhēn​de zǐ​jí.

   The math teacher emphasized that a proper subset is a true subset of the original set.

   Source: Dong Chinese Dictionary