is lot more important than good looking. 一句话， 旺夫相。It probablly was not their fault not to have childen； it takes two to tango. Both married to their aged husbands who had several ex-wives. Only SAL married to her 原配 husband Ha Ha 孔 who had several kids together.
Have you noticed all of them never married foreigners when they had plenty of chances overseas but tying knots with money and power in China!!
