a small visible part of a much larger problem
はるかに大きな問題の小さな見える部分 (haruka ni ōkina mondai no chiisana mieru bubun)
"The few complaints we received are just the tip of the iceberg."
"私たちが受け取った少数の苦情は、ただの氷山の一角です。" (Watashitachi ga uketotta shōsū no kujō wa, tada no **hyōzan no ikkaku** desu.)
to succeed or progress in one's life or career
strategies or tactics for achieving success in difficult sit...
to focus and work hard for a long time
to cover up a problem without truly fixing it
to be very familiar with something; to have a thorough under...
to leave for a particular place
