无爪的猫杰克在树的底部嘶嘶作响，将熊搁浅了约15分钟。
Hissing at the base of the tree, Jack, the clawless cat, kept the bear at bay for about 15 minutes.
第六章中我们讨论了2 -连通半无爪图的最长圈。
In the last chapter, we discuss the longest cycle of 2-connected quasi claw-free graphs.
他们感觉自己安全暴露，易受伤害，就像一只无爪的猫，又像只折断了翅膀掉落在地的小鸟。
They feel exposed and vulnerable, like a cat after being declawed or a bird grounded by a broken wing.
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