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第19页

信息发布者：

C

appeared

fixed

Pioneers

praise

calendar

organized

powerful

carelessness

impatient

creative

either take the lead or fall behind

can't afford to make any mistakes

to high standards

Not only he but (also) his elderly grandma

can't be too patient

think twice

fail

friendly

sure

best

remember

agree

believe

need

or

difficult

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