1。Reveals dialectical relationship of things。

Two mutually contradictory and completely opposite words are combined to directly describe the contrariness of things。 It seems absurd, but it creates deep meaning after speculation。 There are two types of situations。 The first one is that there are two contradictory aspects in the thing itself。 For example, “sweet sorrow” illustrates Juliet’s mixed feelings, which involves partly joyful for admitting their love and partly sad for upcoming departure。 The second one is that there are different results from different perspectives。