1The act of putting parts or elements together in sequence to build a single object, structure, or whole — or the resulting structure itself. Used both physically (furniture, machinery) and abstractly (the structure of a sentence, story, plan, or organization). In industrial contexts, the okurigana-less form 組立 also appears in fixed compounds like 組立工場 (assembly plant) and 組立ライン (assembly line).
通販で買った棚は自分で組み立てる必要がある。
The shelf I ordered online has to be assembled by yourself.
説明書通りに組み立てたのに、ネジが余ってしまった。
I followed the instructions exactly, but somehow I have leftover screws.
この工場は自動車の組み立てを行っている。
This factory carries out automobile assembly.
文章の組み立てが分かりにくいので、もう一度書き直そう。
The structure of this writing is hard to follow — let's rewrite it.
プレゼンの組み立てを工夫すれば、もっと伝わりやすくなる。
If you put more thought into how your presentation is structured, it'll come across more clearly.