each important position or strategic post; every key location
軍は要所要所に兵を配置した。
The army deployed troops at each strategic point.
イベントでは要所要所に案内係を置いている。
At the event, guides are stationed at every key spot.
工事中は要所要所を写真で記録しておくと安心だ。
During construction it's reassuring to photograph each important stage.
彼は要所要所で適切な指示を出した。
He gave appropriate instructions at each key point.
each important part or point; every key point in a matter or text
プレゼンでは要所要所を明確に示すことが大切だ。
In a presentation it's important to clearly indicate the key points.
要所要所に注目して説明を読んでください。
Please read the explanation, paying attention to each important point.
議事録には要所要所の決定だけを書き残した。
The minutes recorded only the decisions at each key point.
論文は要所要所の引用を確実に示すべきだ。
A paper should reliably cite the important parts.