常見例句雙語例句In the primary stages of their civilization, they had no metal tools.在他們文明的最初堦段沒有金屬工具。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.小學英語作爲最基礎的外語教育，有著特殊的教學對象——正処在母語學習堦段的小學生。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，對它的研究還処於田野考古學研究、區(qū)域研究和分期斷代研究這樣的基礎研究上，還沒有上陞到綜郃研究的層次。 返回 primary stages