to be so worried or upset that you don't know what to do
何をすべきかわからないほど心配したり、落ち込んだりしている
"I'm at my wits' end trying to calm the kids down."
"私は子供たちを落ち着かせようとするあまり、限界に達しています。"
to stay cheerful even when facing difficulties
to avoid laughing in a funny situation
intelligence or decision-making provided by AI systems
to be very eager or impatient for something to happen
a person who spends a lot of time sitting and watching TV
to become very excited or angry
