满怀信心

wǒ mǎn huái xìn xīn de zǒu jìn kǎo chǎng

我满怀信心地走进考场。

I went into the exam hall confidently.

mǎn huái xìn xīn de jìn rù shāng jiè

满怀信心地进入商界

go into the business world with confidence