improvent指抽象的改善和提高,应该是不可数名词,句子可以改成a great improvement.
另外最好用现在完成时:
The material and spiritual life of chinese citizens have got a great improvement.
improvent指抽象的改善和提高,应该是不可数名词,句子可以改成a great improvement.
另外最好用现在完成时:
The material and spiritual life of chinese citizens have got a great improvement.