1. 宣布参选的活动：229. the rubber chicken circuit 为竞选募款而前往各地举行餐会 | 230. launch pad 宣布参选的活动 | 231. dark horse 默默无闻,成功希望渺茫的候选人

2. 发射台bFe中国学习动力网：launch a satellite 发射卫星bFe中国学习动力网 | launch pad 发射台bFe中国学习动力网 | multistage rocket 多级火箭bFe中国学习动力网

3. 发射坪：Balkan 巴尔干半岛 | launch pad 发射坪 | Royal United Services Institute 英国皇家联合服务学会

1. （火箭、导弹或卫星的）发射坪，发射台
A launch pad or launching pad is a platform from which rockets, missiles, or satellites are launched.

e.g. ...the launch pad at Cape Canaveral.
卡纳维拉尔角发射台

2. 跳板；踏脚石
A launch pad or launching pad is a situation, for example a job, which you can use in order to go forward to something better or more important.

e.g. Wimbledon has been a launch pad for so many players...
温布尔登一直是成就众多球手的地方。
e.g. It was the launching pad for a media career that has made her one of the highest-paid people on British TV.
她就是凭此跳板进入媒体行业，成为英国电视界最高薪人士之一。

noun

1. a platform from which rockets or space craft are launched

Synonym: launching padlaunchpadlaunch areapad