to suddenly change direction
突然方向を変える (totsuzen hokou o kaeru)
"The conversation veered off into weekend plans."
"会話が週末の予定にそれた。" (kaiwa ga shuumatsu no yotei ni soreta)
attempting to obtain sensitive information by disguising one...
the time for something or someone has ended
to be so surprised that you doubt what you see
someone or something very funny or entertaining
You can't expect to achieve something without taking risks.
to be the best or most impressive thing in a situation