The word "study" is spelled as /ˈstʌdi/, with a stress on the first syllable. The pronunciation of the "u" in "study" is the same as the "u" in "cup". The word "indifferent" is spelled as /ɪnˈdɪfrənt/. The stress is on the second syllable, and the "di" sound is pronounced as /də/ in unstressed syllables. The "fer" sound is pronounced as /fər/ in stressed syllables, and the "ent" sound is pronounced as /ənt/. Therefore, when spelling the phrase "study at indifferent", each word should be spelled as mentioned above.