MEANING/意义
正是
EXAMPLES/列句
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现在正是我们趁机反攻的大好时机。Now is a wonderful time for us to counter-attack.
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不愿意背诵课文,这正是有些留学生口语水平上不去的问题所在。Not willing to recite the texts -- this is exactly where the problem lies,that many international students cannot improve their speaking level (of Chinese) .