yellow card

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

黃牌

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.
裁判因為他魯莽的鏟球給了他一張黃牌
He received two yellow cards and was sent off the field.
他領了兩張黃牌,被罰下場。