形容词
中文翻译：主要的
同义词：
['primary', 'chief', 'foremost例句：1. The primary goalof the project is to improve efficiency.（该项目的首要目标是提高效率。）2. The primary reason for hisabsence was due to illness.（他缺席的主要原因是由于生病。）3. The primary focus of the researchwas on developing new materials.（研究的重点是开发新材料。）']
例句：
-
1. The primary goalof the project is to improve efficiency.
该项目的首要目标是提高效率。
-
2. The primary reason for hisabsence was due to illness.
他缺席的主要原因是由于生病。
-
3. The primary focus of the researchwas on developing new materials.
研究的重点是开发新材料。