1. Hard work is the cornerstone of success.
    努力工作是成功的首要因素。

1. 礎：由于MTX在治疗RA中的显著优越性,目前多主张将其作为联合用药的基础(cornerstone) 联合治疗主要用于病程较长和难治性(指已经至少足量使用两种 DMARDs,尤其是MTX和SASP,而效果不佳)RA患者,研究表明MTX, SASP和HCQ三者联合使用的效果要优于这三种药两两联合,

1. 基石;基础;最重要的部分
    The cornerstone of something is the basic part of it on which its existence, success, or truth depends.

cornerstone

    e.g. Research is the corner-stone of the profession.
           研究是这一职业的基础。

1. a stone at the outer corner of two intersecting masonry walls

2. a stone in the exterior of a large and important building
    usually carved with a date and laid with appropriate ceremonies

3. the fundamental assumptions from which something is begun or developed or calculated or explained

    e.g. the whole argument rested on a basis of conjecture

    Synonym: basisbasefoundationfundamentgroundwork