第三周的英文是the third week，具体释义如下：
读音：[ðə θɜːrd wiːk]
词性：通常在句中作名词，作为主语或宾语。
固定搭配：The e Third Week 补元气；By The Third Week 到第三周；During The Third Week 至第三周；For The Third Week 至第三周。
例句
1、This is only the third week in my master!
怎么说这也才是我研究生课程的第三个星期而已啊！
2、By the third week, the novelty of her new surroundings had worn off.
到了第三周，新环境里的好奇事物渐渐消失。
3、By the third week of class, even with her head start, Esme was again behind half the class.
到课程的第三周，恰好开始头部训炼，艾思慕又落后至班上的中等成绩。
