When stocks fall suddenly,many people would sell as soon as they can.Well,not Thomas,even at this very moment,he is hangging on to the stocks,hoping their value will increase.hang on 为什么还要再加个to阿? 而且从句意看应该是例举说明,实际并没有发生吧?那为什么它...
请问以下2个句子有什么区别? 侧重点有什么不一样?But China's satellites are important for improving the NAV system.But China's satellites are important to improve the NAV system.