thanks 有门, I went to garage last Friday, the fix was done Saturday (because drive side axle was different with the original one, the couldn't use re-manufactured axle they ordered, had to get old one re-built, I drove home with rental car Friday night, at that moment, I realized that what you said "关键干得利索就行" :-) ).
I bought Wagner ceramic brake pads from local parts store, cost is $33 plus tax, I paid $300 to have CV axle replaced (both side), $50 for labor of replacing pads and machining rotor. BTW I love ceramic pad, it's much quiet than previous one I had, which was semi-metallic pads.