Traditional Chinese architecture organizes rectangular spaces along an axis, using a timber-frame system, dougong brackets, and rich painted decoration to express hierarchy, ritual, and local craft traditions.
Cultured techniques transformed black pearls from rare natural oddities into widely available gems. Today both saltwater Tahitian-style pearls and China's freshwater pearls supply a broad market - buyers should note origin, nucleation method, and treatments when judging value.
Green tea comes from Camellia sinensis leaves heated to prevent oxidation. It offers light, vegetal flavors and contains catechins like EGCG. Brew gently (70-80°C) to avoid bitterness. Research suggests modest health benefits, but concentrated extracts carry risks.
Gastric cancer remains a leading global killer, but many cases are preventable: treat H. pylori, cut salt, avoid smoked/pickled foods, quit smoking, and use targeted endoscopic screening in high-risk groups.