様相

1. Origins, structure, and basic meaning

• Structure: 様相 (ようそう) is a literary noun for the aspect or appearance a situation presents. The examples use 様相を見せる and idiomatic 様相を呈する.
• Basic usage: A street shows a different appearance in the evening; a problem takes on a complex aspect as discussion advances.

2. Common pitfalls and similar expressions

• Appearance changing by time and complexity emerging in a problem
  • Both constructions present a state becoming visible, but 呈する is more formal. The noun is not limited to a person's facial appearance.