someone who is unemotional or not friendly
感情がなく、友好的でない人 (kanjou ga naku, yuukouteki denai hito)
"He seemed a cold fish when I first met him."
"彼は初めて会ったとき、冷たい魚のように見えた。" (kare wa hajimete atta toki, tsumetai sakana no you ni mieta)
Knowing a small amount about something can lead to mistakes.
to be responsible for something and able to explain it
people or organizations who hold authority or control
Full of famous or talented people.
to trust that someone is telling the truth
to waste time creating something that already exists