| 1. | Millions of people around the world cook their food over a smoky fire every day 全世界数百万的人每天生火煮食物。 |
| 2. | Millions of people around the world cook their food over a smoky fire everyday 世界各地数百万人的日常做饭用有烟火。 |
| 3. | Millions of people around the world cook their food over a smoky fire every day 世界上成千上万的人每天在烟熏的火上烧饭。 |
| 4. | Millions of people around the world cook their food over a smoky fire every day 世界上每天有上百万的人使用有烟的火做饭。 |
| 5. | Millions of people around the world cook their food over a smoky fire every day 每天,全世界数以百万计的人用火烹饪食物。 |
| 6. | Millions of people around the world cook their food over a smoky fire every day 全世界上百万的人每天煮食物都是用冒烟的火种。 |
| 7. | Millions of people around the world cook their food over a smoky fire every day 全世界每天有成千上万的人通过烟熏火烹饪他们的食物。 |
| 8. | Millions of people around the world cook their food over a smoky fire every day . it is often difficult to find wood for the fire 每天世界上数百万的人做饭用烟熏火。为生火找木头常常是件难事。 |
| 9. | Millions of people around the world cook their food over a smoky fire every day . it is often difficult to find wood for the fire 每天,世界各地数百万的人们用火煮饭,通常很难找到木头来作燃料。 |
| 10. | Millions of people around the world cook their food over a smoky fire every day . it is often difficult to find wood for the fire 世界上数百万人用材火做饭,但是经常会难以找到煮饭所需要的木头。 |