Books to babysitters:Amazon's next move
亚马逊的下一个动作，已经不满足于做书，现在已经要开始带小孩了
books to babysitter: 押头韵
Has Amazon ever seen a market it didn't want to enter?
他有没有见到一个市场他不愿意进入？即他都愿意进入，学术写作角度不建议，但新闻写作不错，表达了行文立场，情绪立场表露无遗
Five Forces Model:new/potential entrant, substitute,supplier,customer,,(bargining power 议价能力）competitive rivalry 这五个要素决定了这个市场够不够有吸引力
behemoth: something of monstrous size 源于希伯来语 巨头
before becoming a retailer for everything from art supplies to zombie survival kits.
before 在口译中可译为之后成为了。。
derived from Hebrew for
“beast”商业巨头
retailer:零售商
zombie survival kits: 僵尸来时急救包
art supplies to zombie survival kits. From A to Z Amazon 精巧的语言结构
branch out into: expand into
nappies(AmE): diapers (BrE)
以上，从观点到例子，从抽象到具体，一个最基本的英文写作逻辑。
be expected to announce 固定搭配 已经酝酿很久了+n. ,同位语解释
marketplace:the activity of buying and selling products
plumber: 水管工
constrain: limit the development
perception: impression
Some critics worry:新闻表达负面观点的习惯用法,为了切入对立观点，很赞
over-diversified: 过分多元化 over-cook 烧糊了 over或者under 都是不好的 under-cooked chicken
crossover: 跨界
But Amazon, （whose technology chief, Werner, was recently mocked when he described the firm as "20-year-old startup"）, is still in land-grab mode -as today's move demonstrates.
括号内皆为插入或解释同位作用，句子结构分析
mock: make fun of
land-grab mode: 圈地运动 对应前文的 Books to babysitters，behemoth
startup创业公司
小结：适合谈论科技改变生活的例子
