The Sequence command returns a function containing a sequence of arguments which were spliced into the function.

$\mathrm{with}\left(\mathrm{MmaTranslator}\left[\mathrm{Mma}\right]\right)\:$

$f\left(a\,\mathrm{Sequence}\left(b\,c\right)\right)$

$f\left(a\,b\,c\right)$

$\mathrm{with}\left(\mathrm{MmaTranslator}\right)\:$

$\mathrm{FromMma}\left(\mathrm{`f[a,\; Sequence[b,\; c]]`}\,\mathrm{evaluate}\right)$

$f\left(a\,b\,c\right)$