primary stages

常見例句

In the primary stages of their civilization, they had no metal tools.
在他們文明的最初階段沒有金屬工具。
The most basic primary school English as a foreign language education, with special teaching object - is in the primary stages of learning their mother tongue.
小學英語作為最基礎的外語教育，有著特殊的教學對象——正處在母語學習階段的小學生。
At present, the focuses are archaeological research, regional study, and periodical division, which are primary stages. It has not got the level of synthetic study.
目前，對它的研究還處于田野考古學研究、區(qū)域研究和分期斷代研究這樣的基礎研究上，還沒有上升到綜合研究的層次。