wear thin不是指“穿得很薄”，其正确的含义是逐渐失去耐心；逐渐消失。

【例句】
I've warned you several times about being late and my patience is wearing thin.
我多次警告你不要迟到，我对你已经失去耐心了。

His patience began to wear thin during the long wait.
在长期的等待中，他的耐性慢慢消失了。