to attend a meeting or class without participating actively
積極的に参加せずに会議や授業に参加する (sekkyokuteki ni sankasezu ni kaigi ya jugyo ni sankasuru)
"He was allowed to sit in on the meeting as an observer."
"彼は観察者として会議に参加することが許可されました。" (Kare wa kansatsusha toshite kaigi ni sankasuru koto ga kyoka saremashita)
to choose from a group
to make something increase in value or price
to encourage someone to keep going; to show support
to continue progressing or making progress with something
to continue developing based on what you have already achiev...
to gain control of one’s emotions
