plural tie-ups
plural tie-ups
Learner's definition of TIE-UP
[count]
1
chiefly US : a situation in which something (such as traffic) becomes very slow or stops because of a problem, accident, etc.(交通)堵塞 2 chiefly British
a : a close connection between people or things紧密的联系 b : an agreement to do business together(生意上的)合作,联合 — see also tie up at 1tie