She knows how to play up to the boss.

她知道怎么讨好上司。

He wanted two good actresses to play up to him.

他想要两个出色的女演员担任配角。

You can play up to 30 games simultaneously.

你可以同时进行高达30个个游戏。

She ought to play up to him, not to contravene him.

她应该使他高兴，不该违背他的请求。

He seems to want two good actors to play up to him.

看来他需要两个好演员配给他。