Complex sentence: In Morse code, the three letter grouping QSK is part of the International Q code which is one of several International ACP-131 brevity codes which literally means "" I can listen between my signals.
Split into simpler sentences: In Morse code, the three letter grouping QSK is one of the signals of the International Q code which is one of several International ACP-131 brevity codes. QSK literally means "" I can listen between my signals.