全封闭方法?

有一种全封闭方法，其实可能有片面性。

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We should notice that Chinese-English is different than other laguage like:latin,Slavic,to English.
Also adult learing is different than child learning.

After the explanation , incl. mine, we may find above system is one-sided, limited. The backward,poor situation as a whole in learning English, as well as Chinese, is a very proof of that limit.

一个简单的比喻， 两条腿走路快， 还是单腿跳快？ 当然任何比喻都有缺陷，有人会说，我是火箭式，...
那么， 在卫星抛出之前，发射庞大的火箭是不是象先迈开另一条腿？