Fix case mistakes
@ -119,7 +119,7 @@
❌ ['ətʃɪv]
1. ajax [🔊](http://dict.youdao.com/dictvoice?audio=ajax&type=2)
1. AJAX [🔊](http://dict.youdao.com/dictvoice?audio=AJAX&type=2)
✅ ['eidʒæks]