王牌

Many schools use small classes as their trump card in marketing campaigns.

很多学校在做宣传活动时都把小班授课当成他们的王牌。

I had to play a trump to win the trick.

我只好打出王牌才赢得这一墩。

The rot really set in when the team’s best player left the club last year.

自从去年里的王牌选手离开俱乐部以后，球就每况愈下。

The plane had a breakdown in the air, but it was fortunately removed by the ace pilot.

飞机在空中发生了故障，但幸运的是被王牌驾驶员排除了。

Diamonds are trumps.

方块为王牌。