当我们开玩笑的时候，我们经常绷着脸或使用不笑的表情。

We often keep a straight face or use an unsmiling expression when we're making a joke.

youdao

在各种情景中听到或使用英语。

Hear or use English in situations.

youdao

随意的对话给学习者在各种情景中听到或使用英语的机会。

Casual conversations give learners the chance to hear or use English in situations.

youdao

They're pretty impressive looking. But they would be big, but still that would be a lot easier to transport and handle than a whole box or closet full of scrolls.

看起来觉得不可思议，它们虽然很厚，但它们仍然比较容易携带使用,相对于装满卷轴的箱子或书橱来说。

耶鲁公开课 - 新约课程节选

when it comes to looking for examples of people speaking good idiomatic English in a recorded form.

当说到举一个例子说什么文本或音频材料里有使用地道的英语时，

想征服英语的话 - SpeakingMax英语口语达人

To be honest, especially those of you less comfortable here, if you've ever struggled with some program or struggled with some piece of software, oh it's alright, it's not your fault.

说实话，尤其是对那些在这里上课有些吃力的同学，如果你曾经使用哪个程序或软件有困难,好吧，那不是你的错。

哈佛公开课 - 计算机科学课程节选