外语的英文：
foreign language

It pays to learn a foreign language.
学外语是值得的。

She is quick at learning a foreign language.
她学外语学得快。

Excel in foreign languages
擅长外语

A foreign language is a useful tool.
外语是有用的工具。

Is it difficult to feel at home in(ie confident when using)a foreign language?
精通一门外语难不难

Paired-associate learning
(外语学习)成对联想学习法

Children pick up foreign languages easier than adults.
孩子们学外语比成年人容易。

They have a good grasp of foreign languages.
他们外语掌握得很好。

He is well schooled in foreign languages.
他在外语方面受过良好教育。

Foreign languages will go a long way towards widening our mental horizon
外语会大大帮助我们开阔思想境界。

In the UK, there are the Foreign Office and Foreign Secretary.
在英国，有外交部和外交大臣。

custom of foreign trade.
对外贸易惯例

The guidebook is for the accommodation of foreign tuorists.
这份指南是为了方便外国游客而准备的。

The foreign market was increasingly crucial.
国外市场越来越重要了。

Deception was foreign to his nature.
欺骗和他的本性格格不入。

Pilipino language
菲律宾语

natural language
自然语言(指人类语言集团的本族语,与世界语或计算机语言等人造语言相对)

Has a feeling for language.
对语言有领悟力

A subfamily of the Austronesian languages that includes the languages of Melanesia.
美拉尼西亚之南岛语南岛语的一个分支，包括美拉尼西亚语

Reference is a language construct designating a declared language object .
引用是一种语言构成成分，它可指引一个被说明过的语言对象。