to take on someone's role or responsibility
承担某人的角色或责任 (chéngdān mǒu rén de juésè huò zérèn)
"She was able to step into her boss's shoes when he was on vacation."
"当她老板度假时，她能够代替老板工作。" (Dāng tā lǎobǎn dùjià shí, tā nénggòu **dàitì lǎobǎn** gōngzuò.)
Always stay optimistic, but be ready for any outcome.
to explore or investigate something in detail
to use one's authority or influence in an aggressive way
whatever is available or happens by chance
to become more outgoing or confident
an older person trying to look younger
