In a more recent historical example, the return of Hong Kong to PRC rule, although Beijing naturally hopes Hong Kong people will adopt Mandarin, they are moving gradually.
在歷史的前車之鑑下，如今香港回歸，北京雖然也希望香港人「回歸」官方語言普通話，但卻用漸進的方式，廣東話在香港仍普遍通行。