yellow card

US /ˈjel.oʊ ˌkɑːrd/
UK /ˈjel.oʊ ˌkɑːrd/
"yellow card" picture
1.

黄牌

a card shown by the referee to a player who has committed a foul, indicating a caution

:
The referee gave him a yellow card for a reckless tackle.
裁判因为他鲁莽的铲球给了他一张黄牌
He received two yellow cards and was sent off the field.
他领了两张黄牌,被罚下场。