1. sixth form
   n. （英国中学里的）六年级，最高年级
   
2. sixth sense
   n. 第六感, 直觉
   

1. The oldest children are in the sixth form.
   年龄最大的学生在六年级。
2. The sixth tone of the diatonic scale in solfeggio.
   视唱中全音阶的第六个音
3. The sixth sign of the zodiac in astrology.
   室女宫天文学上的黄首宫的第六宫
4. He was the sixth to arrive.
   他是第六个到达的。
5. His eldest child is still in the sixth form.
   他年龄最大的孩子才上六年级。

　3个名词解释

　1个形容词解释