involved

The instructions for assembling the furniture were so involved that I had to ask for help.

组装家具的说明如此复杂，我不得不求助。

用法提示：Involved 作为形容词，表示‘复杂的’。

She found the plot of the novel too involved to follow easily.

她觉得这部小说的情节过于复杂，难以轻松跟上。

用法提示：Involved 形容情节复杂。

The negotiations became increasingly involved as more parties joined the discussion.

随着更多方加入讨论，谈判变得越来越复杂。

用法提示：Involved 描述谈判过程复杂。