重労働

1. Origins, structure, and basic meaning

• Structure: 重労働 is read じゅうろうどう and means physically demanding labor.
• Basic usage: It describes strenuous tasks such as carrying stones.

2. Common pitfalls and similar expressions

• Intensity and duration
  • 重労働 focuses on physical demands. 長時間労働 focuses on long working hours, so the two expressions use different criteria.
• Interpreting 重
  • Here 重 adds the idea that the labor is demanding. It is not restricted to tasks involving the carrying of heavy objects.