strike-on

She struck up a folk melody on the piano.

她开始用钢琴演奏那首民歌。

With a rail strike on the cards for next week, airline bookings have been unusually high.

由于下周可能会发生铁路，预订飞机票异常地抢手。

There’s a postal strike on at the moment, so we’ll have to deliver these invitations by hand.

现在邮递员，我们只好派人送这些请贴了。