early 13c., "trusting," from trust (n.) + -y (2). Old English expressed this idea by treowful. Meaning "reliable, to be counted on" is from early 14c. The noun meaning "trustworthy person" is from 1570s; specifically as "a prisoner granted special privileges as reward for good conduct" by 1855.
权威例句
1. She still drives her trusty black Corvette.
她仍然开她那辆皮实可靠的黑色克尔维特车。
2. She spent years touring Europe with her trusty old camera.
她带着她那架忠心耿耿的照相机在欧洲周游多年。
3. The master left his money with a trusty servant.
主人把他的钱交给一个可靠的仆人保管.
4. I never had a braver, better fellow, - trusty and true as steel.