to not feel confident or certain about something
何かについて自信がない、または確信がない (nanika ni tsuite jishin ga nai, mata wa kakushin ga nai)
"I’m unsure of what to say in that situation."
"その状況で何と言えばよいのか分からない。" (sono joukyou de nan to ieba yoi no ka wakaranai)
to express anger sharply in the workplace
to omit or not include something in writing or speech
very excited and happy about many options or things
to introduce innovation gradually
to gradually stop doing something stressful
it amazed or shocked me completely
