Yellow card
n. （足球）黄牌
📖 牛津释义
yellow card
(in football, etc) card shown by the referee to a player that he is cautioning （足球等运动中的）黄牌, 黄卡（由裁判员出示, 用以向某运动员提出警告）. Cf 参看 red card (red1).
🧩 词语组成解析
yellow
['jɛlo]
adj. 黄色的;黄皮肤的;黄种人的;胆怯的;
vt.& vi. （使某物）变黄或发黄;
n. 黄色;黄种人;黄色颜料;
card
[kɑrd]
n. 卡片;纸牌;明信片;信用卡;
vt. 记于卡片上;
🗣️ 情景例句
I graduated from Nanjing University.
我从南京大学毕业的。
To sip a cocktail
啜吸鸡尾酒
Apart from any moral considerations this is a stupid method of training,
且不说道义问题，这本身就是一种愚蠢的训练方法，