Should I use degree name as their system? I am writing Statement of Purpose for PhD application to Canadian university and I am stumbling over a little issue that when I write like this 


  I have completed my masters degree ...  after completing bachelors
  degree..


So should I write undergraduate/graduate degree word as what they say at their place or I use words that what they say at my place as I written above? or either one is okey?
I think it is better to use the exact phrases and words mentioned your documents and degrees. If the words bachelors and masters degrees are written in your certificates; simply use these words. It is much more sure and easier than thinking about rephrasing the words or finding synonyms for them. Also, in my opinion; bachelors and masters degrees are more explicit words than undergraduate and graduate degrees.