to suddenly stop talking, especially when nervous or unwilling
突然話を止める、特に緊張したり嫌がっているとき (totsuzen hanashi wo tomeru, toku ni kinchou shitari iyagatte iru toki)
"She clammed up as soon as I asked about her mistake."
"私は彼女の間違いについて尋ねた途端、彼女は黙り込んでしまいました。" (kanojo wa jibun no machigai ni tsuite kiita totan ni **damarikonda**.)
to confront difficulties with courage and confidence
to prepare mentally or physically for something challenging...
to reduce the level of spending
to allow yourself time and space to recover emotionally
to talk a lot or complain repeatedly about something
to study or read something carefully