confidence 
英 [ˈkɒnfɪdəns]  美 [ˈkɑnfədəns] 
n. 自信；信任；知心人；秘密；肯定

例句：
This has contributed to the lack of confidence in the police. 

这加剧了人们对警方的不信任。

Clearly the war has had an impact on consumer confidence and corporate earnings. 

显然战争对消费者信心和企业盈利产生了冲击。

I have every confidence that we can win. 

我确信我们能赢。

I have every confidence in you. 

我完全相信你。

I can say with confidence that such rumours were totally groundless. 

我可以很有把握地说这种谣言完全没有根据。

The team has lost confidence in him as a coach. 

球队已经没有信心再让他当教练了。