Adjective
1. necessary for one to ::
需要一到
2. essential that ::
重要的是,
3. required that ::
要求
4. imperative that ::
当务之急是
5. compulsory for one to ::
必修一到
6. binding on one to ::
一个结合
7. mandatory that ::
强制性的
Noun
8. holder ::
持有人
9. bearer ::
来人
10. occupant ::
占有者