Complex sentence: Earlier, in the Second Test at the Melbourne Cricket Ground, Trumble had taken a "hat-trick"--dismissing Arthur Jones, John Gunn and Sydney Barnes in successive balls to complete an Australian victory by 229 runs.
Split into simpler sentences: Earlier, in the Second Test at the Melbourne Cricket Ground, Trumble took a "hat-trick". He dismissed Arthur Jones, John Gunn and Sydney Barnes in successive balls to complete an Australian victory by 229 runs.