338.Playing organized sports is such a common experience in the United States that many children and teenagers take them for granted.
children and teenagers即为“青少年”;take sb./sth. for granted意为“因熟悉某人(某事物)而觉察不出其真正价值，视为理所当然的”。如:
She never praises her husband: she just takes him for granted.她从不夸丈夫，至少觉得他一切理应如此。
He is such a clever boy that everybody likes him.他是个非常聪明的男孩，大家都非常喜欢他。
They are such interesting novels that I want to read them once again.这些小说非常有趣，我想再读一遍。
He has made such great progress that the teachers are pleased with him.他进步得非常快，老师们对他感到很满意。
※ 如果名词前由many, much, few, little等词所修饰的话，则不用such而用so。如:
He had so many falls that he was black and blue all over.他摔了很多跤，以至于全身上下青一块、紫一块的。