main的同义短语

同义短语是crucial of，例如：

1、The specialization of mathematic teachers is crucial component of the process.数学教研组在数学教师专业化成长中发挥着重要作用。

2、In the end， sharing data， software and materials with colleagues can help an early-career researcher to gain recognition--a crucial component of success.最后，与同事共享数据、软件和材料能够帮助初级研究者获得认可，这也是成功的关键部分。

3、I seem to have forgotten a crucial part of my uniform.我好像忘了穿这制服最重要的那部分了。