解释：河流川泽中有污水，深山草野中藏有瘴气，美玉也有微小的瑕疵。

Fashion is a form of imitation and so of social equalization, but, paradoxically, in changing incessantly, it differentiates one time from another and one social stratum from another.

造纸业有着丰富的历史，但我们必须始终向前看。

我唔怕失败，最怕系冇勇气去试。