【词汇解释】
1..shard n. 碎片,薄硬壳
2.rupture n. 破裂,断裂 v. 使破裂
He'll rupture a muscle if he goes on dancing like that!
他要是继续那样跳舞,会跳得皮开肉裂!
He ruptured himself lifting a bookcase.
他抬书柜时出现了疝。
3.retract v. 缩回,收回,否认,撤销
The accused refused to retract (his statement).
那被告拒不撤消(其供述).
The undercarriage on light aircraft does not always retract in flight.
轻型飞机飞行时起落架不一定缩回。