double-language learning

• 双语习得

double-language learning的用法和样例：

例句

1. L1 transfer is a common phenomenon in learning a second language.
   摘要在二语习得过程中，母语迁移是个普遍现象。
2. During the past three decades, researchers have extensively studied the acquisition of temporality in second language acquisition.
   摘要本文全面介绍了国外时体系统二语习得研究的主要方法和发现。