用与不用冠词的差异
in hospital住院/in the hospital在医院里
go to sea出海/go to the sea去海边
on earth究竟/on the earth在地球上，在世上
in front of在(外部的)前面/in the front of在(内部的)前面
take place发生/take the place(of)代替
at table进餐/at the table在桌子旁
by sea乘船/by the sea在海边
in future从今以后，将来/in the future未来
go to school(church)上学(做礼拜)/go to the school(church)到学校(教堂)去
on horseback骑着马/on the horseback在马背上
two of us我们当中的两人/the two of us我们两人(共计两人)
out of question毫无疑问/out of the question不可能的，办不到的
next year明年/the next year 第二年
a teacher and writer一位教师兼作家(一个人)/a teacher and a writer一位教师和一位作家(两个人)