Treadstone
n. 踏脚石（喻被人利用的计划、行动等）; 踏脚石 （语见电影<碟影重重>）
🗣️ 情景例句
If you'd like to hear some new English songs, I suggest you download them from the web.
如果你想听一些新的英文歌，我建议你上网下载。
We want to strengthen our ties with the United States.
我们想加强和美国的关系。
But Wu Dong ran fastest of all.
但吴东在三人中跑得最快。