From beyond the door a strange creature entered the room.

VOA: special.2010.07.17

But Pavlov observed that when somebody entered the room who typically gave him the food powder, the dog--the food powder saliva would start to come out.

他注意到,当给它喂食的人,进屋时，狗便开始分泌唾液。

耶鲁公开课 - 心理学导论课程节选

Gillian entered the room as if the world were unimportant.

VOA: special.2011.08.13