l2 point
l2点
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The process of L2 learning is that in which learners start from their native language taken as the reference point and gradually reach the target language.
二语学习的过程就是以母语为参照点，逐步靠近目标语的过程。
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