词典释义：
WWDC主题演讲
Apple seldom details its plans in advance, which is why the pre-announcement of the contents of the WWDC keynote were such a surprise.
苹果极少提前透漏计划，这就是为什么提前公布全球开发者大会的要点会这么令人惊讶。
demons and ghosts是什么意思_demons and ghosts单词用法
big screens是什么意思_big screens单词用法
Wearing a skirt是什么意思_Wearing a skirt单词用法
glancing angle是什么意思_glancing angle单词用法
She had a bad cold是什么意思_She had a bad cold单词用法
Which channel是什么意思_Which channel单词用法
at the scheduled time是什么意思_at the scheduled time单词用法
double labeling是什么意思_double labeling单词用法
