She stepped down from the train onto the platform.

她走下火车来到站台上。

《牛津词典》

The specialist walked onto the platform and seated himself in a chair, prepared for answering questions.

这个专家走上讲台，坐在椅子上，准备好回答问题。

youdao

She strode onto the platform.

她大步走上平台。

youdao

The victim fell into the tracks and unsuccessfully attempted to climb back onto the platform, Mr. Browne said.

WSJ: Man Dies After Push Onto Track

They are inviting public figures, incumbent and would-be legislators, non-profit organizations and concerned citizens to sign onto the Platform at peacethroughstrength.com .

CENTERFORSECURITYPOLICY: Center For Security Policy

Microsoft needs to get the right developers onto the platform.

FORBES: The Windows Phone App Store Argument Moves From Volume to Variety