If you have no qualms about doing something, you are not worried that it may be wrong in some way.
例句
I have no qualms about recommending this approach...我會(huì)毫不猶豫地推薦這一方法。Did she see her husband as capable of murder? She had used the word without a qualm.她覺得自己的丈夫可能殺人嗎？在使用這個(gè)字眼的時(shí)候，她沒有絲毫的不安。
英漢詞典釋義
n.
（對自己行為的）顧慮，不安 (~ about sth)
He had been working very hard so he had no qualms about taking a few days off.他一直辛勤工作，所以休息幾天他覺得心安理得。