Is there any difference between 四方形 and 正方形 ? No, there is no difference. 四方形 (sì fāng xíng) and 正方形 (zhèng fāng xíng) generally refer to a square, which is a type of four-sided shape with all sides e
1 - “做销售的“ is a “的-phrase“ or “的-structure“. A “的-phrase“ can used to refer to a person or a thing. In this case, “做销售的“ refers to the person who does sales. When appearing in a sentence, this phrase