to pretend to be brave when you are actually scared or worried
実は恐れることや心配することがあるのに、勇敢に見えるようにすること (jitsuwa osoreru koto ya shinpai suru koto ga aru noni, yūkan ni mieru yō ni suru koto)
"She put on a brave face despite feeling nervous inside."
"彼女は勇敢な顔をした、内心で心配していたのに。" (Kanojo wa **yūkan'na kao** o shita, naitō no naka de shinpai shite ita noni.)
a simple and perfect solution to a complex problem
to remain loyal to someone or something
a plan or structure that is weak and likely to fail
to test a product before official release
showing wisdom or maturity greater than expected for one's a...
to stop being loyal or trustworthy
