https://www.reuters.com/article/us-apple-iphone-china/lucky-8-1000-price-tag-dampens-iphone-enthusiasm-in-china-idUSKCN1BM0LN >Apple Inc will launch an expected "iPhone 8" on Tuesday, hoping the number's auspicious connotations in China will help turn around fortunes in the world's biggest smartphone market after six quarters of falling sales.