|上述不等式称为琴生不等式,琴生不等式是丹麦数家琴生(Jensen)于190| |5~1906年建立的.三角函数如y=sinx,y=cosx在(0,)是上凸函数|
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翁海琴:孩子最初的几年时间是不可替代的,小孩最初的三到四年时光,他们只拥有一次,这对于他们的一生都非常重要。
Weng Haiqin: But for a child's early years it is irreplaceable. They only have the first three years or four years. That is important for her whole life.
我常常对她说,柯林斯太太那里虽然没有琴,我却很欢迎她每天到罗新斯来,在姜金生太太房间里那架钢琴上弹奏。
Collins has no instrument, she is very welcome, as I have often told her, to come to Rosings every day, and play on the piano forte in Mrs. Jenkinson's room.
“琴缘”系列音乐会的演奏人员包括来自中央音乐学院附小、附中、大学的获奖尖子生与青年教师们。
The performers of "Enchanted" series concert include top awarded students and young teachers from primary school, middle school and university affiliated to CCOM.
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