持ち込む

1. Origins, structure, and basic meaning

• Structure: Spelling: 持ち込む. Reading: もちこむ. Core meaning: to bring in; to take to.
• Basic usage: Representative examples: 図書館には飲み物を持ち込まないでください / 修理のため壊れた時計を店へ持ち込んだ.

2. Common pitfalls and similar expressions

• Object and destination
  • Mark the item being brought with を and the destination with に or へ. Compared with 持ってくる, this verb more strongly focuses on bringing something into a bounded place or taking it somewhere for handling.