sure card

• n. 可靠的方法(完全醒着的人)

例句

用作名词 (n.)

1. I am sure that he is a reliable successor.
   我确信他是个可靠的接班人。
2. The letter was sent by a sure hand.
   信已由一位可靠的人寄出了。

词汇搭配

• a sure card 万全之策
• play a sure card 采用可靠的计划...