to understand or gain control of something
理解或控制某事 (lǐjiě huò kòngzhì mǒu shì)
"I'm trying to get a handle on the new software."
"我正在努力理解新软件。" (Wǒ zhèngzài nǔlì lǐjiě xīn ruǎnjiàn.)
something that no longer exists or happens
to line up and wait for your turn
to control or limit something
to trust your own abilities and decisions
to trust your instinct when making a decision
to suddenly become very nervous or afraid