We're off because our downbeats, our strong pulses always have to come on the first part of the bar, this note.

我们做错了,因为我们的重拍,我们的强拍,总是在每个小节的第一拍的那个音

耶鲁公开课 - 聆听音乐课程节选

The first part of the bar is called the downbeat.

每个小节的第一拍叫做重拍

耶鲁公开课 - 聆听音乐课程节选