6. Rather
(1) would rather do 宁愿
例句：He said he would rather stay at home.
(2) rather than 宁愿
例句：I had rather dance than eat.
7. Ever
(1) ever 曾经
例句：Have you ever been there?
(2) ever 究竟
例句：Why ever didn’t you go?
(3) ever 如果
例句：If the band ever plays again, we will dance.
(4)ever so 非常 (=very)
例句：Thank you ever so much.
8. Available
(1) available 通用的，有效的
例句：The season ticket is available for three months.
(2) available 可用的，可达到的
例句：No enough data is available to scientists.
9. Else
(1) else 此外，别的
例句：Where else did you go?
(2) else 否则，不然
例句：Hurry, else you’ll be late.
10. Involve
(1) involve 包括
例句：Housekeeping involves cooking, washing dishes, sweeping, and cleaning.
(2) involve 使陷于
例句：One foolish mistake can involve you in a good deal of trouble.
(3) involve 使纠缠，使难得
例句：A sentence that is involved is hard to understand.
(4) involve 包围
例句：Clouds involved the hilltop.