The capital asset pricing model (CAPM) is a useful tool for understanding the risk-return tradeoff, but it is not a perfect description of reality.
資本資產(chǎn)定價模型（CAPM）是理解風(fēng)險-回報權(quán)衡的有用工具，但它并非對現(xiàn)實的完美描述。
The choices women make in their careers are often constrained by societal expectations and institutional barriers.
"I write against something, not for something."
In dreams, you don't need to make any distinctions between things. Not at all. Boundaries don't exist. So in dreams there are hardly ever collisions.
We must balance the need for energy with the need to protect our planet.
質(zhì)量不是聲明；它是一種證明。