In Singapore, the colloquial expression "mandarin ducks" refers to which drink?

在本地，饮料“鸳鸯”指的是什么？

This is a common colloquial expression which originated in the ghettos and has reached mainstream middle class American society.

这是一个普遍使用的口语化表达，它起源于贫民区，并且流传到美国社会主流中产阶级。

Naturally finding a new resource and an effective method to help EFL learner to master colloquial expression becomes the focus of this thesis.

因此寻找到一种新的学习材料和合适的学习方法来帮助学习者有效的掌握口语惯用语成为了本论文的核心。

To use this expression is not offensive, but language is very colloquial.

使用这个表达不会很冒犯别人，但是这种说法是非常口语化的。