I like a film to have a beginning, a middle, and an end, but not necessarily in that order.
酸的強(qiáng)度由其提供質(zhì)子的能力來衡量,堿的強(qiáng)度由其接受質(zhì)子的能力來衡量。
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
我對扮演同一個角色兩次不感興趣。