slipping
['slɪpɪŋ]
adj.
渐渐松驰的，渐渐不行了的，渐渐变懒的;
v.
滑( slip的现在分词 );
滑脱;
下降;
（健康状况等）变差;
例句:
-
I cannot resist slipping in a word of advice.
我忍不住想插上一句建议。
来自柯林斯例句
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And a number of African countries, too, are slipping through the net.
并且一些非洲国家也被漏掉了。
-
Slipping over the stones and refuse on the shore.
来自Dickens
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You will see exactly where you are slipping up.
你会确切地知道自己哪里出了错。
-
Small wonder america is slipping into third world status.
来自SA
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Prices of some pods are slipping, though.
来自WSJ