early 15c., "faithfulness, devotion," from Middle French fidélité (15c.), from Latin fidelitatem (nominative fidelitas) "faithfulness, adherence, trustiness," from fidelis "faithful, true, trusty, sincere," from fides "faith" (see faith). From 1530s as "faithful adherence to truth or reality;" specifically of sound reproduction from 1878.
实用例句
1. Wanting fidelity implies you're thinking about a major relationship.
要求忠诚意味着你想发展一段严肃认真的恋爱关系。
来自柯林斯例句
2. He believed in marital fidelity.
他认为婚内应该忠诚。
来自柯林斯例句
3. He appreciated his discretion and his fidelity.