The construction crew delved into the hillside to make room for the new warehouse foundation.

施工團隊挖進山坡，為新倉庫的地基騰出空間。

Before laying the cables, workers delved beneath the office parking lot for two days.

在鋪設電纜之前，工人們在辦公室停車場底下挖了兩天。

Our travel guide explained how miners once delved deep into these mountains for silver.

我們的導遊解說以前礦工如何深入這些山中挖掘銀礦。