redundancy

redundancy在English Grammar裹面係指有些用字是過多，或意思是重複的, 即是excess的。
例子:
(1) I will receive an annual income of HK$10M yearly.( Yearly 是reductant。因前面已提及annual了。
(2) You should not repeat it again. ( repeat 本意已有again的意思。所以again 是redundant)

2009-01-22 21:29:47 補充：
More examples:

I am going to publicize the news openly. ( openly 是多餘的，故是reducdancy。因publicize 就有「公開」的意思)

2009-01-22 21:54:32 補充：
Another example:

She screamed loudly. [ loudly 這字是redundant。因screamed(尖叫)已有loud(大聲) 的意思了]

2009-01-22 22:30:13 補充：
one more example:

return back (back 是多餘的，因return 已有back 的意思)

請參考以下網頁:

http://www.wsu.edu/~brians/errors/returnback.html

e.g. A special breed of redundancy is proliferating in our modern world as we increasingly rely on abbreviations and acronyms in the busyness of our technology.