<口>偏离无线电波指示的航道，不对头
1. 正横：off take pipe 排出管 | off the beam 正横 | off the coast 离开海岸
2. 脱离航向：off the bat 立刻 | off the beam 脱离航向 | off the beat 不合拍
1. In the 2007 Stuttgart World Championships the injury kept her off the beam, though she still helped China win a team silver medal.
2. The highlight of the picture is a solitary beam of light reflected off the worn vat.