raise boring

例句：

1. 1. The baby is learning to walk bystanding on his own.
   宝宝正在学习走路，自己站立。
2. 2. The company raised its stockprice significantly last quarter.
   该公司上个季度股价显著上涨。
3. 3. The teacher raised her voiceto emphasize the point.
   老师提高了声音强调这个观点。