发布于:2025-07-05 23:05浏览量:51文/优校网
1.“tie up”的过去分词和过去式
1.if someone is tied up, they are very busy
2.if traffic is tied up, it is not moving very quickly
3.if your money is tied up in something, it is being used for that thing and you cannot use it for anything else
1.The past participle and past tense of tie up