I am XXX's mother. My son is your year 4 class ABF+PR student. He is having a heavy flu. The doctor suggested that he should stay at home for a couple of days. Therefore he won't be going to school on April 26 to 27. Very sorry about that. But he will be back as soon as he gets better. Best wishes!
Yours Sincerely,
XXXX
重感冒是 heavy flu
大傷風是 heavy clod (本人居於英國，病名翻譯準確)
希望妳早沾勿藥，快快康復，和學業進步!!!