比如我们想表示笑脸，我们可以打一张笑脸。

Like if we want to smile, we can type a smile face.

youdao

当对方打一张黑桃时你本来不应该出已经打过的红桃。

When the opposite leads a spade you shouldn't have played a card of the heart suit that has been led.

youdao

下家打一张四索，你也打一张四索，当然是钉，但是这种机会并不多。

Next homes for a four rope, you also play a four line, nail, of course, but this opportunity is not much.

youdao