字面意思是“抬起你的下巴”。当某人遇到挫折或情绪低落时，用这句话鼓励他们保持自信和乐观。

• I know things are hard right now, but keep your chin up. ^{我知道现在很困难，但要振作起来。}
• Keep your chin up! You’ll find a better job soon. ^{别灰心！你很快会找到更好的工作。}
• Despite the loss, the coach told the players to keep their chin up. ^{尽管输了球，教练还是告诉球员们要保持昂首挺胸。}