帮我弄下这几个词的英语造句

1. arborists (n)
The arborist-training system is being run down as fewer arborists are needed.
因对树艺家的需求量越来越小，故对树艺家进行培训的制度正在萎缩。

2. indentured (v,adj.)
He indentured to a builder
他与一建筑工人订了师徒合同
According to incomplete statistics, more than 12 million indentured Chinese laborers were sold to various parts of the world from the mid-19th century through the 1920s.
据不完全统计，从十九世纪中叶到二十世纪二十年代，被贩卖到世界各地的华工多达1200万人。

3. indoctrination (n)
forcible indoctrination into a new set of attitudes and beliefs.
强制性的灌输某种信仰和学说。

4. leper (n)
His unpopular views made him a social leper.
他因见解不受欢迎而见弃於社会.
The building is said to be haunted by the ghost of a leper woman
据说这幢大楼常有一个麻疯病女人的鬼魂出没

5. mononucleosis (n)
An abnormal increase of monocytes in the blood, occurring in infectious mononucleosis and certain bacterial infections such as tuberculosis.
单核细胞增多症单核细胞在血液中异常地增多，出现在传染性单核细胞增多症和某些细菌感染