英语语法分析

Idioms are conventionalized multiword expressions and contain much cultural information.

习语是语言词汇的重要组成部分，包含着丰富的文化信息。

The main focus of the related studies in SLA field is on PAL of individual words, but few studies have been conducted on the multiword units like idioms in PAL context.

二语习得领域中的相关研究主要关注单词的配对联结式学习，而很少有人研究像习语这样的多个词的配对联结式学习。