to formally approve something
正式批准某事 (zhèngshì pīzhǔn mǒu shì)
"The director needs to sign off on the final budget."
"导演需要签署最终预算。" (Dǎoyǎn xūyào **qiānshǔ** zuìzhōng yùsuàn.)
To do something dangerous or risky.
after an unpleasant experience, you are careful to avoid it...
to gradually become more confident
to gain someone's confidence through actions
refers to artificial intelligence systems capable of learnin...
to fulfill promises and obligations