plugging

英文造句：

1. The outlets are conveniently placed for plugging in.
   電源插座裝在便於插插頭的地方。
2. He has been plugging away at that article, for hours.
   他已堅持了好幾個小時寫那篇文章。
3. They've been plugging his new show on the radio.
   他們一直在電台上宣傳他的新節目。
4. She's been plugging away at her French lessons for months.
   她已刻苦攻讀法文數月。

英文解釋：

動詞 plug:

1. fill or close tightly with or as if with a plug
   同義詞：plug, stop up, secure
2. persist in working hard
   同義詞：plug, plug away
3. deliver a quick blow to
   同義詞：punch, plug
4. make a plug for; praise the qualities or in order to sell or promote
   同義詞：plug