pinking的中文翻译是什么意思

The car engine was pinking slightly.

车子的引擎发出一点点爆震声.

The car engine pinking slightly.

车子的引擎发出“一点点”爆震声.

Cut the edge of the card by pinking shears to make serration or wave patterns.

再使用造形剪刀将卡片的边缘剪成锯齿或波浪状,以增加美感.