Sales of the Apple Watch more than halved in the second quarter, with new figures from researcher IDC suggesting chief executive Tim Cook’s first significant product is failing to live up to expectations.
参考译文：Apple Watch第二季度的销售量下滑了一半以上。研究公司IDC的新数据表明，苹果公司首席实行官蒂姆•库克上任以来推出的首款要紧商品或有负众望。
【请问：more than halved是下滑了一半以上，那样“上升了一半以上”要如何表达？】
▲句中的 halved 是动词 halve 的过去式，意思是“减半”。又如：
Overall operating profits halved to $24 million. 总的营业收益降低了一半，降至2,400 万元。
Their profits have halved in the last six months. 在过去的六个月里，他们的价值降低了一半。
The relative frequency of fraternal twins has halved since 1950. 自 1950 年以来，双卵性双胞胎的相对发生率降低了一半。
The shares have more than halved in value since the summer high of 572p. 股价从夏季572 便士的高价已经下跌了一半以上。
▲动词 halve 也可以是及物的。如：
After the pessimistic sales forecasts, production was halved. 在做了悲观销售预测之后，产量减少了一半。
Cash cuts have halved the number of places available on training courses. 经费削减使培训名额降低了一半。
In the past eight years, the elephant population in Africa has been halved. 在过去的八年中，非洲大象的数目降低了一半。
▲是表示增加或上升了一半以上，不可以用 halve。要改其他说法。如：
The number of families seeking shelter rose by more than one third. 寻求避难的家庭数目上升了三分之一以上。
Over the last decade, auto theft has increased by more than 50 percent. 过去的10年来汽车偷窃案上升了50％以上。
It is said that foreign investment in
