复数： improvements

提示：点击例句中的单词，就可以看到词义解释

The baseline to measure improvement is 1990 .

改善措施的基线于1990年确定。

But there was room for improvement in certain groups .

但此类情况在某些群体还有改进的空间。

He wasn 't sure this was an improvement .

他不确定这是一种进步。

Hard data on trade finance are fragmentary , but suggest improvement .

尽管贸易融资的相关硬性数据并不完整，不过确实显示出了好转趋势。

There 's nothing wrong with incremental improvement .

渐近式改良并没有什么错。