launch on (或 upon)

• • 积极地投身于；开始从事：

    They managed to launch on a new business.

    他们设法创办了一个新的企业。

  • 就(某事)开始(或发动)：

    The congressman launched a strong attack on the president's misconduct.

    议员猛烈抨击了总统的胡作非为。

  • 向…首次推出；将…首次投放于：

    Nike is ready to launch new models of tennis shoes on the market in autumn.

    耐克公司准备于秋季将新款网球鞋投放市场。