Nilmanifold
[数]幂零流形
🗣️ 情景例句
ready for the graduation ceremony,
为毕业典礼做准备，
Nothing is impossible to a willing heart.
心之所愿，无事不成。
Men, particularly, spend hours of their leisure time installing their own fireplaces, laying out their own gardens; building garages and making furniture.
特别是男人，常利用空闲时间安装壁炉、布置花园、建造车库、制作家具。