如何在Go中拆分子切片

I'm recently using Go to create applications. My question is this: at a certain point in the program I have a string slice:

my_slice = []string{"string1","string2","string3","string4","string5","string6"}

It contains 6 strings. Which is the best procedure (easier to write and understand) to break this slice into 3 parts, for example, and distribute the content in three sub-slices? If I have:

var my_sub_slice1 []string
var my_sub_slice2 []string
var my_sub_slice3 []string

I wish at the end of it my_sub_slice1 will contain (in his first two entries) "string1","string2"; my_sub_slice2 will contain (in his first two entries) "string3","string4"; my_sub_slice3 will contain (in his first two entries) "string5","string6". I know the question is easy but I haven't found a clean and efficient way to do this yet. Thanks a lot!

my_sub_slice1 := my_slice[0:2]
my_sub_slice2 := my_slice[2:4]
my_sub_slice3 := my_slice[4:6]