r*******t
发帖数: 8550 | 1 Better than Amazon Kindle! | a*o
发帖数: 25262 | 2 how many books you can read in a month? | r*******t
发帖数: 8550 | 3 1 - 2
But for reference books, it is good that if you could get them in a minute,
with no fee (or lower cost by sharing). Normally you only need a small
portion of the reference book for few minutes, that's all.
【在 a*o 的大作中提到】
: how many books you can read in a month?
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