### 词汇解释与区别
1. **idly**
- **解释**:指“无所事事地”“懒散地”或“无目的地”,强调缺乏行动或意图的状态。
- **例句**:He sat **idly** by the window, watching the rain.(他懒散地坐在窗边看雨。)
2. **invalidly**
- **解释**:指“无效地”“无根据地”或“在法律/逻辑上不成立地”,强调缺乏有效性或合法性。
- **例句**:The contract was **invalidly** signed due to lack of consent ...(以上内容有节略,please sign in for more)