本期内容：

Shares in Allergan, a pharmaceutical firm with headquarters in Dublin, fell by 15% in response to suspicion that tax-avoidance legislation would scupper its planned $160 billion merger with Pfizer, an American drugmaker. The deal would be the biggest-ever “tax inversion”, in which one firm becomes a subsidiary of another in a more tax-friendly country. Barack Obama denounced the “insidious” technique.

词义解析:

Pharmaceutical firm: 制药公司
Scupper：使……泡汤
Tax inversion: 税负倒置
Subsidiary：子机构
Denounce：谴责
Insidious：阴险的