1.September 1st
The bridge was completed on September 1st in the same year.
同年九月一日这座大桥竣工。
2.Sept.1st
Mary goes to school with her schoolbag on Sept.1st.
九月一日,玛丽背着书包去上学。
一 月:January 简写:Jan.
二 月:February 简写:Feb.
三 月:March 简写:Mar.
四 月:April 简写:Apr.
五 月:May 简写:May.
六 月:June 简写:Jun.
七 月:July 简写:Jul.
八 月:August 简写:Aug.
也可以说成 the first of September
September 1st
Sept.1st