Knuckled
v. （指人）指关节( knuckle的过去式和过去分词 ); （指动物）膝关节, 踝
🗣️ 情景例句
Sorry, I'm afraid I'm busy tonight.
很抱歉，恐怕我今晚没空。
It's urgent to improve the packing.
必须马上改进包装。
The fire brigade was called and two fire fighter freed George using a special type of grease.
有人打电话叫来消防队，两位消防队员使用了一种特殊的润滑剂才使乔治得以解脱。