99色精品-9色在线-99色在线-99色视频国产欧美日产一区二区三区_亚洲精品亚洲人成在线观看_四虎在线精品永久观看_免费一级a一片久久精

<abbr id="6hv0z"><output id="6hv0z"><b id="6hv0z"></b></output></abbr>

<pre id="6hv0z"><strong id="6hv0z"></strong></pre>

名詞解釋

A lingua franca

答案： A lingua franca is a variety of language that serves as a me...

你可能感興趣的試題

Accent

答案： Accent refers to a way of pronunciation which tells the list...

Pragmatics

答案： Pragmatics is the study of how speakers of language use sent...

<ruby id="m9ube"><xmp id="m9ube"></xmp></ruby>

<em id="m9ube"></em>

<ruby id="m9ube"><xmp id="m9ube"></xmp></ruby>