How to Change Mac System Language via Command LinePolyglots, learners, and the bilingual often want to change their Mac system language for obvious reasons, but another less obvious situation can occur if you’re troubleshooting a Mac that either originates in another country, had the language changed at some point, or is just set to a different language. Since it can be pretty challenging to navigate around in a language you don’t know at all or
「OS X Yosemite 10.10.2」公開、Wi-Fiの接続問題などを修正 
