to enter your username and password to access an account
アカウントにアクセスするためにユーザー名とパスワードを入力する (akauto ni akusesu suru tame ni yūzāmei to pasuwādo o nyūryoku suru)
"You must sign in before commenting on this post."
"この投稿にコメントする前にサインインする必要があります。" (kono tōkō ni komento suru mae ni **sain in** suru hitsuyō ga arimasu.)
to interrupt; to force entry into a place
to direct something downward
to try to start communication or discussion with others
to accept and deal with something difficult calmly
to regard someone or something as inferior or less worthy
to gain an advantage or profit through something
