A plug had been inserted in the drill hole.

那个钻孔里已经塞上了塞子。

《柯林斯英汉双解大词典》

He managed to get in a plug for his new book.

他设法为自己的新书插入了一条宣传信息。

《牛津词典》

youdao

We didn't have that in the eight-millimeter days. We had to lug a projector, we had to plug it in to somebody's wall, put up a screen and show it to someone patient enough to sit there for five minutes and watch.

VOA: special.2011.06.20

The discount rate that is shown is the number that you plug into a formula to get the price.

这里显示的折扣率,需要被代入一个公式来获得价格

耶鲁公开课 - 金融市场课程节选

I don't know if you know how a spark plug works, but for the electrical current to fly into operation in a spark plug, the two points of contact have to be gapped.

我不知道你们是否知道,火花塞是怎样工作的，在电流通入火花塞中使它运转之前，两个接触点之间需要有空隙。

耶鲁公开课 - 文学理论导论课程节选

The batteries will power the Chevrolet Volt, a plug-in hybrid coming later this year.

FORBES: Magazine Article

Get a plug by Oprah Winfrey, or maybe an appearance on the Today show.

FORBES: Magazine Article

Last year, it offered a plug-in "stick" for laptops to connect to wireless Internet.

WSJ: T-Mobile in Talks for New Phone