validity
n[U]
1 state of beinglegally acceptable (法律上)有效; 合法(性)
test the validityof a decision 验证某决定是否合法.
2 state of being logical 合逻辑; 正确(性)
question the validity of an argument, assumption 对某一论据、 假定的论点的正确性提出疑问.
On our way home that night I looked down and saw that the necklace was not around my neck any more. I told Pierre. We rushed back to the palace and looked for it.We asked everyone there if they had found a necklace, but without luck. We couldn't find it;