| 单词 | trimester |
| 释义 | tri·mes·terBrE /traɪˈmestə(r)/ NAmE /traɪˈmestər/ noun (medical医学) a period of three months during the time when a woman is pregnant 妊娠期（以三个月为单位）◆ the first trimester of pregnancy 妊娠的头三个月(NAmE ) = term (2 ) ◆ The school year is divided into three trimesters . 一学年分三个学期。 ➡ compare semester |
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