However there still exist some errors in it.
然而，书中也存在着一些明显的错误和漏洞。
However we should admit there still exist some phenomenon not harmonious.
但我们也应当认识到，在有些大学生身上，还存在自我失和的现象。
However, there still exist quite a few difficulties in the further promotion of green consumption.
但是，绿色消费的进一步推行还存在许多困难。
Many scholars have researched into this issue. However, there still exist many disputes.
有大量的学者对此进行了研究，然而还存在较大的争议。
However, there still exist some different aspects between the two optimization methods.
然而，需要注意的是两种优化方法各有特点。
However, there sometimes can exist bubbles in your still red wine. Why?
然而，静止葡萄酒中有时也会出现气泡，这到底又是为什么呢？
However, there sometimes can exist bubbles in your still red wine. Why?
然而，静止葡萄酒中有时也会出现气泡，这到底又是为什么呢？
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