October 2, 2006 - 1:03am
By Julie Geng
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Without your lips, your teeth would rot away, or so says an old Chinese idiom. Today, the phrase refers to the symbiotic relations between China and North Korea, implying not only the closeness and mutual dependence of the two nations, but also the tendency for the teeth to regularly bite the lips, as Prof. Jian Chen, history, joked Saturday.