that

英 /ðæt/ 　美 /ðæt/

det. 那；那个used before a noun to identify something farther away
pron. 那个；那件事；关系代词refers to something indicated, or introduces a defining relative clause
conj. 引导陈述性从句introduces a clause expressing a statement, belief, or fact

Could you pass me that bowl beside the window?

你能把窗边的那个碗递给我吗？

Research suggests that access to green spaces can improve mental health among people living in cities.

研究表明，能够接触绿地有助于改善城市居民的心理健康。

搭配

at that time 在那时that kind of 那种now that 既然so that 以便

作指示词时复数为those；引导宾语从句常可省略。