Premastery
(在需要之前對某種技巧或技術的)預先掌握
??? 情景例句
Don't let us keep you from your math tutoring, Robbie.
別讓我們妨礙你的數學家教， Robbie。
That's very nice of you, but I really can't.
謝謝你的好意，但是我實在不能再呆了。
Don't forget us.
別忘了我們。