1 sentence

1. 这个表达式中，我们不需要乘号或括号。

   zhè​ge biǎo​dá​shì zhōng, wǒ​men bù​xū​yào chéng​hào huò kuò​hào.

   In this expression, we do not need a multiplication sign or parenthesis.

   Source: UM-Corpus: Education