in the testing phase before final release
最終リリース前のテスト段階 (saishuu ririisu mae no tesuto dankai)
"The app is still in beta, so expect some bugs."
"アプリはまだベータ版なので、バグがいくつかあるかもしれません。" (Apuri wa mada **beta-ban** nanode, bagu ga ikutsuka aru kamoshiremasen.)
to be the best or most successful in a situation
to adapt and learn quickly without prior preparation
a person who spends a lot of time sitting and watching TV
a very short amount of time
As I understand; based on what I know
to aim for something very ambitious or difficult to achieve
