Their work reveals a lot about songbird genetics, and opens a new door to understanding the basis of human speech.

VOA: standard.2010.04.05

He opens the door to the room, and there is a picture that Camille has drawn of Dean: a portrait of him completely naked, and it notes his penis in that picture.

他打开房间门，看到有一张画,是卡米尔画迪恩的一张裸体肖像，画上还画了他的阴茎。

耶鲁公开课 - 1945年后的美国小说课程节选

Now adding that qualification opens the door to a worry.

加上这个量的修饰词,烦恼随之而来。

耶鲁公开课 - 死亡课程节选