be locked in battle/combat/dispute etcTAKE PART/BE INVOLVEDto be involved in a long, serious argument or fight with someone 卷入斗争/战斗/争论等之中 They are now locked in a bitter custody battle over the three children. 他们现在陷入了一场苦战，争夺三个孩子的监护权。
→ be locked in battle/combat/dispute etc at lock1(1)