In particular, a quality called "fluid intelligence" -including numerical skills and the ability to adjust rapidly to new situations-begins to go downhill in middle age.
特别是，被称为“流体智力”的素质—包括数学能力和快速适应新环境的能力—在人的中年时期每况愈下。
2
Specifically, they improved their performance on tests of so-called fluid intelligence, the ability to solve new problems and reason abstractly.
尤其是在液化智力(即解决新问题和抽象思维的能力)测试中，他们的表现有大幅度提升。
3
Acute kidney failure is the sudden loss of your kidneys' ability to perform their main function of eliminating excess fluid and salts (electrolytes) as well as waste material from your blood.