| 1. | In these crowded centers, the labor movement took form . 在这些人烟稠密的城市中,劳工运动逐渐形成。 |
| 2. | These two men traveled for three days, and found people and houses without number . 这两个人在岛上跑了三天,所到之处人烟稠密,屋宇毗连。 |
| 3. | To avoid visiting crowded places with poor ventilation 避免前往人烟稠密的地方。 |
| 4. | E to avoid visiting crowded places with poor ventilation 避免前往人烟稠密的地方。 |
| 5. | Avoid visiting crowded places with poor ventilation ; and 避免前往人烟稠密的地方; |
| 6. | Avoid visiting crowded places with poor ventilation 避免前往人烟稠密的地方 |
| 7. | Avoid crowded places 避免前往人烟稠密的地方。 |
| 8. | Avoid crowded places with poor ventilation if you are feeling unwell 如有不适,避免去人烟稠密和空气流通欠佳的地方。 |
| 9. | To avoid visiting crowded places with poor ventilation , especially during peak influenza season 保持空气流通避免前往人烟稠密的地方。 |