A letter to the heroes against COVID-2019

Dear heroes,

Thank you for fighting against COVID-2019.You tried your best to save people's lives.You work day and night in the front line to protect us from virus.Your brave has moved a lot people.Moreover,what you have done provides other countries valuable experiences .In my opinion,you are the most admirable and the loveliest people in the world.

Best wishes to you and your family.

                                                                                                              yours

                                                                                                              Li Hua