a feeling of deep sadness or sorrow
深深的悲伤或痛苦的感觉
"She left her hometown with a heavy heart."
"她带着沉重的心情离开了她的家乡。"
casual or polite conversation about unimportant topics
to choose to participate
to fully enjoy and appreciate a happy situation
a person who knows a lot about many subjects
to be extremely surprised or upset
to continue for too long and become boring
