Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_50 ( airing_date VARCHAR, english_title__chinese_title_ VARCHAR, genre VARCHAR, official_website VARCHAR, number_of_episodes VARCHAR )

### Question ###
What's the airing date of Armed Reaction with 20 episodes in the Modern Action genre having an official website?

### Accurate SQL ###

SELECT airing_date FROM table_name_50 WHERE official_website = "official website" AND number_of_episodes = 20 AND genre = "modern action" AND english_title__chinese_title_ = "armed reaction 陀槍師姐"