faithfulness
n. 忠诚;诚实;正确
例句
Dogs are emblematic of faithfulness.
狗象征着忠诚。
《柯林斯英汉双解大词典》
She had doubts about his faithfulness.
她怀疑他的忠诚。
《牛津词典》
So what makes a good marriage? Faithfulness comes out top of the list.
那么什么可以造就成功的婚姻呢?忠诚是第一位的。