1. 拆开：unperturbed 平静的 | unpick 拆开 | unpierceable 无法刺穿的

2. 拆开/割开/拆散：unperturbed /未受到搅乱的/平静的/镇定的/ | unpick /拆开/割开/拆散/ | unpickled /未酸洗的/

1. 拆（线）；拆开, 拆散
    If you unpick a piece of sewing, you remove the stitches from it.

unpick的翻译

    e.g. You can always unpick the hems on the dungarees if you don''t like them.
           如果你不喜欢，你可以把工作服的褶边拆掉。

2. 找…的毛病;给…挑刺
    If someone unpicks a plan or policy, they disagree with it and examine it thoroughly in order to find any mistakes that they can use to defeat it.

    e.g. A statesman who ought to know better wants to unpick last year''s reform of Europe''s common agricultural policy.
           一个不甚了解情况的政客想对去年欧洲普遍的农业政策改革指手画脚。

1. undo (the stitches) of (a piece of sewing)

2. become or cause to become undone by separating the fibers or threads of

    e.g. unravel the thread

    Synonym: unravelunknotunscrambleuntangle