pile : 積み重ねる
一般例文
- He piled books on the table.
英字新聞からの例文
- 引用元 : Financial Times - Telecoms versus carmakers in race to get connected (2017/11)
However, this could pile on the costs as the two systems may need to be included in the same car to comply with the law and, according to engineers working on newer systems, slow down projects.