to pretend to be confident or happy when you are not
自信を持っているふりをしたり、幸せそうに見せること、実際にはそうではない時に (jishin o motte iru furi o shitari, shiawase sō ni miseru koto, jissai ni wa sō de wa nai toki ni)
"She put on a brave face even after hearing the bad news."
"彼女は勇気を出して見せた、悪い知らせを聞いた後でも。" (Kanojo wa **yūki o dashite miseta**, warui shirase o kiita ato demo.)
to punish or criticize someone severely
to be very close to losing control due to stress
to trust someone completely
to adjust oneself to new situations or changes
used to encourage someone who has failed
A very complex or unsolvable problem.