| 1. | Tom : why do doctors and nurses wear masks
汤姆：为什么医生和护士们都戴口罩？ |
| 2. | Do not talk in elevator , please put on respirator
电梯内请勿交谈,请戴口罩 |
| 3. | Wear a mask if you have symptoms of respiratory tract infection
如有呼吸道感染的病徵，须戴口罩。 |
| 4. | Wear a mask all the time except sleeping , eating or showering
除睡眠、饮食及淋浴外，应经常戴口罩 |
| 5. | Wear a mask if you have symptoms of respiratory tract infection
如有呼吸道感染的病徵，须戴口罩。 |
| 6. | Passage 79 why the doctor wears mask
为什么医生要戴口罩 |
| 7. | The following people should wear a mask in the non - sars period
答:在没有沙士个案期间，以下人士应戴口罩 |
| 8. | Wash hands before wearing a face mask and after taking one off
戴口罩前后应洗手，并按生产商指引正确佩戴。 |
| 9. | Wash hands before wearing a face mask and after taking one off
戴口罩前后应洗手，并按生产商指引正确佩戴。 |
| 10. | No one was even wearing a mask
甚至没有人戴口罩。 |
