一学年分为两学期，第一学年从九月到十二月，第二学期从一月到五月。
The school year is divided into two semesters [si 'mest?], the first of which is September through December, and the second January thought May.
帝企鹅会在同一时期内，通常是九月到十二月之间，成群的产卵筑巢哺育后代。
The birds lay, nest and rear their young all at the same time, usually between September and December.
一学年被分成两个学期， 第一个学期从九月到十二月， 第二个学期从一月到五月。
The school year _____________ two semesters, ________________ is September through December, and the second January through May.
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