有/失去/增强 + 信心
信心 (xìnxīn) is a Chinese noun meaning "confidence" or "faith." It combines 信 (trust/belief) and 心 (heart/mind), and is used to express one's assurance or conviction in a person, outcome, or situation.
我对这次考试很有信心。
Wǒ duì zhè cì kǎoshì hěn yǒu xìnxīn.
I'm very confident about this exam.
教练的话让队员们恢复了信心。
Jiàoliàn de huà ràng duìyuánmen huīfù le xìnxīn.
The coach's words restored the team members' confidence.
只要努力准备,你应该对自己有信心。
Zhǐyào nǔlì zhǔnbèi, nǐ yīnggāi duì zìjǐ yǒu xìnxīn.
As long as you prepare hard, you should have confidence in yourself.