The phrase "ace one sleeve" sounds pretty straightforward, but its spelling can be a bit tricky. First, the "a" in "ace" is pronounced as /eɪ/ (like the "ay" in "hay"). Then, the "one" is straightforward with a /wʌn/ sound. Finally, "sleeve" has two tricky parts: the "ee" is pronounced as /i/ (like the "i" in "ski"), and the "v" is actually pronounced as an /f/, making the sound /sliv/ ("slif" with a slightly elongated "i" sound).