ADJ-GRADED [verb-link ADJ] 忙得不可开交的;不得闲的;正在使用的 If someone or something is tied up, they are busy or being used, with the result that they are not available for anything else. 忙得不可开交的;不得闲的;正在使用的 [informal] [Also + in]
-
He's tied up with his new book. He's working hard, you know. [+ with]
他正忙他那本新书。他在辛勤工作，您是知道的。
-
More and more old people have capital tied up in a house.
越来越多老年人的资金全让房子给套牢了。
SYN busy, occupied, engaged, engrossed