今昔

1. Origins, structure, and basic meaning

• Structure: 今昔 is read as こんじゃく and means “past and present”.
• Basic usage: It denotes comparing a port town’s past and present and recounting a bridge’s changes over time.

2. Common pitfalls and similar expressions

• 港町の今昔 / 今昔について
  • Link the changing subject with の in 港町の今昔, or mark it as a topic with 今昔について.