superimpose
v[Tn, Tn.pr]
~ sth (on sth) put sth on top of sth else, esp so that what is underneath can still be seen, heard, etc 将某物置於另一物上(尤指後者仍可见、 可闻等)
a map of Great Britain superimposed on a map of Texas, eg to show comparative size 放在得克萨斯地图上的英国地图(如用以比较大小)
superimpose an English commentary on the original soundtrack 把英语解说加录到原声带上.