contribution 可数吗

contribution 意为贡献、捐献，是可数名词，复数是contributions、
例句：
Outsiders may then find it difficult to determine your contributions and strengths、
局外人可能会很难确定你的贡献和优势。

He schooled over two dozen Ph、D、 students who themselves made major contributions to the field、

他培养了二十多名对该领域做出重大贡献的博士生。

Project Hope has made important contributions to both the education and the health of children、

希望工程为儿童的教育和健康做出了重要的`贡献。

For his contributions to the world food supply, Borlaug was awarded the Nobel Peace Prize in 1970、

由于他对世界粮食供应的贡献，博洛格于1970年被授予诺贝尔和平奖。

Many such women are well known for their contributions in government, education, and the nonprofit sector、

许多这样的女性因其在政府、教育和非营利部门的贡献而闻名。