名詞 thirty:

1. the cardinal number that is the product of ten and three
   同義詞：30, XXX

形容詞 thirty:

1. being ten more than twenty
   同義詞：30, xxx

1. I get up at six thirty every morning.
   我每天早上六點半起床。
2. There are more than thirty footmen in this hotel.
   這家旅館里有三十多名仆役。
3. Although thirty, he is childlike.
   盡管他已三十歲了，但還是孩子般的無邪。
4. She dashed off two letters in thirty minutes.
   她在30分鐘內寫好了兩封信。
5. She seemed a babe although she was already thirty.
   盡管她已經三十歲了，看上去還象個小孩。
6. She has served the family faithfully for thirty years.
   她為這個家忠心耿耿地操勞了30年。
7. There were many people with leprosy around the age of thirty.
   在三十年代有很多麻瘋病人。
8. I'll be thirty next year.
   明年我就滿三十歲了。