The technology giant reported quarterly sales of $50.56bn (£34.39bn) down from $58bn last year - the first fall in sales for the company since 2003.请问:(1) 句中的意思是quarterly sales从58降到50.56吗?(2) 如何表示“降了多少”(即“降幅”)?
...然它们在热带环境中极少长得很茂盛,但在热带地方较高的山坡和高山旁还是能够生长。Several species of wildlife forage for berries, the largest of these being the bear.有些种类的野生动物以采食浆果为生,其中以熊的体积最大。