HSK 1
那
nà代（连）
(specifier) that; the; those (colloquial pr. nèi); (pronoun) that (referring to persons, things or situations); then (in that case); surname Na; variant of 哪
那是我妈妈的手机。
Nà shì wǒ māma de shǒujī.
That is my mom's phone.
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Appears across levels (1（2）) in the HSK 3.0 word list.