bk

基本解释

She feels that B.K. should never leave prison, but she does not want him executed.
她认为B.K. 应该永远离开监狱，她不愿意他受到审判。
Eggs are nutrient-rich with vitamins like B and K as well as folic acid, which is especially important to women's health.
鸡蛋富含维他命 b和K以及对妇女的健康尤为重要的叶酸。
And, by additional acoustical structure proposed by B/K, the variations of phase characteristics have been verified, the basis for the phase control of the probe is given.
并验证了B/K提出的附加声学结构后相位特性的变化，为声强探头的相位控制提供了依据。

They are known as vitamins A, the B group,C,D,E and K.
If I reduce that it would be 3 plus t of b minus 3, so in general 3*k+t this is 3 k plus t of b minus k. OK.
把b减去一个,在外面加个3就可以了,因此也就是。
麻省理工公开课 - 计算机科学及编程导论课程节选
So I'm done when b minus k equals 1, or k equals b minus 1.
因此b-k=1或k-b=1的时候，我就可以停下来了。
麻省理工公开课 - 计算机科学及编程导论课程节选

Mozart twiddled his thumbs in Munich by writing the Piano Sonata in B-flat, K. 281.
NPR: Mozart's Job Hunting Dilemma