特别是意合的转折句式，对第二语言学习者来说理解起来更加困难。
Especially, transition meaning-marking sentence form is more difficult for second language learners.
小组合作学习是一种教学组织 ，它是教师在教学中合目的的一种选择。
Team-cooperation study is a purposeful choice by teachers in process of teaching.
小组合作学习是一种教学组织 ，它是教师在教学中合目的的一种选择。
Team-cooperation study is a purposeful choice by teachers in process of teaching.
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