to be upset about something that cannot be changed
変えられないことを嘆いても仕方がない (kaerarenai koto wo nageite mo shikata ga nai)
"There's no use crying over spilled milk."
"覆水盆に返らず。" (Fukusui bon ni kaerazu.)
to protect your calm and avoid stress or disturbance
someone or something that brings happiness
A very close competition
the connection of everyday objects to the internet to send a...
to establish high standards or expectations
the final problem that makes a situation unbearable
