TASK DEFINITION: In this task, you are given a sentence in English, and your task is to translate it into Persian.
PROBLEM: Air pollution has been a public enemy to millions of Iranians for years.

SOLUTION: سال‌هاست، آلودگی هوا یک مشکل عمومی برای میلیون‌ها ایرانی بوده است.

PROBLEM: English

SOLUTION: انگلیسی

PROBLEM: Picture uploaded onto Twitter by @PYCAPk.

SOLUTION:
@PYCAPK.