The sentence above means
"The Moon and The Sun Letters". See section 7 (which should have already
been covered) if you do not already understand the rules relating to the sun and
the moon letters. Remember, this rule affects the pronunciation of
the word and not the written form. Please listen carefully to the pronunciation.
Pay attention to how the letters in the Sun Letters (اَلْحُرُوْفُ
الشَّمْسِيَّةُ),
the laam of alif-laam is assimilated to the first letter in
pronunciation. The table below covers each letter in the Arabic alphabet along
with an example of a word which starts with that letter under the relevant
column depending on whether it is a sun or moon letter.