"Hello and welcome back to another half-hour segment of Cloverdale's Corner. Today is Tuesday, and Lourdes has had to leave but we still have four people here ..."
VOA: special.2011.07.21
Take four liters on this corner of the room.
在这房间的角落里取四升空气。
麻省理工公开课 - 热力学与动力学课程节选
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