學一個詞的另一個用法 - minus

This is new to me, "minus" is used as a prep. meaning, "without", below is the scenario in which this usage is applied:



"A highlight of the summit was a 50-minute stroll Obama and Xi took through the desert on Saturday minus their advisers — as well as their coats and ties, sitting on a California redwood bench that Obama gave Xi as a gift."



minus => without





Thank you.