knowing card

• n. 精明的家伙

knowing card的用法和样例：

例句

用作名词 (n.)

1. In the desperation of elections however, calculating politicians will often play the race card.
   但如果选举结果让人绝望，精明的政客就会打出民族主义这张牌。

词汇搭配

• a knowing card 精明者