8 - 八bā
The pronunciation of the number 8 is "bā", very close to the Chinese character "发(fā)" as in "发财(fā cái)", which means "to become wealthy." People in China traditionally associate fortune with the number "Eight". To give you an example to just how greatly the number 8 is favored, the telephone number 8888-8888 was sold for a whopping amount of USD $270,723 in Chengdu. If you still don't believe the number eight is highly regarded as a lucky number, let's refer to the Summer Olympics in Beijing. The ceremony opened on the August 8th (08/08/08), at precisely 8 minutes and 8 seconds past 8 PM Beijing time.
9 - 九jiǔ
The number 9 is yet another lucky number, because it has exactly the same pronunciation as the Chinese character “久(jiǔ)”, which has the meaning of "everlasting". For example, on Valentine's Day, a man would express his love by presenting 9999 roses to his girl to show that his love towards her is everlasting.