early 15c., from Middle French confidence or directly from Latin confidentia, from confidentem (nominative confidens) "firmly trusting, bold," present participle of confidere "to have full trust or reliance," from com-, intensive prefix (see com-), + fidere "to trust" (see faith). For sense of "swindle" see con (adj.).
实用例句
1. He has never exhibited the self-confidence, bordering on arrogance, of his predecessor.
他从未表现出他前任的那种近乎傲慢的自信。来自柯林斯例句
2. Hopes of an early cut in interest rates bolstered confidence.
利率有望早日下调，从而增强了人们的信心。来自柯林斯例句
3. He walked towards the summerhouse, at first furtively, then with more confidence.
他朝凉亭走去，开始还偷偷摸摸地，后来就壮大了胆子。来自柯林斯例句
4. Martinez expressed confidence of victory at the ballot box.
马丁内斯表示了对选举获胜的信心。来自柯林斯例句
5. She felt nervous, increasingly lacking in confidence about herself.
