1.best-known 最有名的
例句:One of the best-known badges is Cooper.
库柏是最有名的汽车标牌之一
。2.self-criticism 自我批评
例句:His self-criticism was not made for show.
他的自我批评不是摆样子的
。3.self-improvement 自我改善
例句:Benjamin Franklin imbued in us the zeal to work and encouraged the inclination for self-improvement.
我们对工作的热情以及自我改善的倾向来自本杰明·富兰克林
4.operating system 操作系统
例句:The virus has infected the operating system of his computer.
病毒已使他的计算机操作系统受到传染
。