我们的球员把球扔进场内，裁判示意这是一个有效的掷界外球。

Our player threw the ball onto the field, and the referee signaled it was a valid ___throw-in.

为了达成协议，卖家额外赠送了一年的保修服务。

To close the deal, the seller ___threw in a one-year warranty for free.