interest的形容词形式是interested和interesting。
interested：adj.感兴趣的；关心的；表现出兴趣的；
interesting：adj.有趣的；有吸引力的
I find it interesting that she claims not to know him.
她声称不认识他，我觉得真是耐人寻味。
It is interesting to compare their situation and ours.
把他们的状况与我们的相比很有意思。
She has always interested herself in charity work.
她始终关注慈善工作。
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