a person who spends a lot of time sitting and watching TV
テレビを見ている時間が多い人 (terebi o mite iru jikan ga ōi hito)
"He’s become a couch potato since he lost his job."
"彼は仕事を失ってからa couch potatoになった。" (kare wa shigoto o ushinatte kara **a couch potato** ni natta)
to refuse to change one's position or opinion
an unidentified but informed source
to set a limit or boundary
to aim for a difficult or ambitious goal
to make people notice something immediately
to be extremely surprised or frightened
