preliminary study

例句：

1. 1. This preliminary study will help us understand the market trends better.
   这项初步研究将帮助我们更好地了解市场趋势。
2. 2.The team conducted a preliminary study before making any final decisions.
   团队在做出任何最终决定之前进行了初步研究。
3. 3. The preliminary study revealed that there were significant differences in the data between the two groups.
   初步研究表明两组数据之间存在显著差异。