feel safe與feel safety意思上有何區別

feel safe意思是感到安全，safe是名詞，feel safety意思是感到安全的，safety是形容詞，例如：

1.Many people still feel there is safety in numbers when belonging to a union.許多人仍然感到加入工會後會有強大的後盾。

2.Did you feel safety in this hotel?您在該賓館內是否感到安全？

3.Have the view that mistake is inevitable in experiment, thus students will feel safety in mind.正確對待學生在實驗中的錯誤觀，使學生心理上有安全感。