本期内容：

Hong Kong is back in top spot as the most expensive city to live in the world as an expat, according to research. The city of skyscrapers had dropped to second place last year behind Luanda, the capital of Angola. But it now heads the Asia-dominated list again, according to the 24th annual cost of living survey carried out by advisory firm Mercer. The survey covers costs ranging from housing and clothes to bread and beer.

top spot: 首位；第一位
top gun/dog: 顶级人物；精英
top-notch: adj. 顶级的；一流的
expat: n. 外派人员 (expatriate/assignee)
skyscraper: n. 摩天大楼
head: vt. 领先，拔得头筹；率领，带领
dominate: vt. 占据首要地位
advisory/consulting firm: 咨询公司

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