to be honest and trustworthy
正直で信頼できる (shōjiki de shinrai dekiru)
"I trust her completely because I know she’s always on the up and up."
"私は彼女を完全に信頼しています、なぜなら彼女がいつも正直で信頼できるからです。" (watashi wa kanojo o kanzen ni shinrai shiteimasu, nazenara kanojo ga itsumo **on za appu ando appu** dakara desu)
proven effective through experience or hardship
To stay focused on achieving a goal.
to spread gradually among people
To use something to its full potential.
An event with worldwide significance or impact.
to remain confident and strong during hardships