its subtle and a lot of nuances there ! no easy answers...

來源: 忌憶 於 2009-10-21 10:52:43 [] [舊帖] [給我悄悄話] 閱讀數 : (166 bytes)

but two suggestions are

- to read original english grammar books
- to use the dictionaries (cambridge) with the mark of countable and uncountable nouns.

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