merit

1.merit有时统指“优点”（是抽象名词），有时指一个优点，有复数形式merits；如This book has not much merit和This book has many merits。

2.according to his merit和according to his merits都可以说，这里merit(s)指“优劣”或“功罪”。

• 拓展学习：小词详解 | merit