Excellent comments. 谢谢。

I did it last Friday night。 At the time, I was having a cold。 But this environmental allergy thing must have been working on me too since I atill have to put up with stuffy nose.

1) Not sure if it is s or z in "patterns"。如果原读是“s”， then at least the s sound is accepted in some places. 呵呵。

2) All the other critiques are so on target. 

Not sure if I will have the opportunity to redo this, but I will try to make it. Thanks for the encouragement.