please turn on the ohp so we can start the presentation.
请打开投影仪，这样我们就可以开始演示了。
the teacher used the ohp to display the diagrams.
老师用投影仪来展示图表。
make sure the ohp is properly focused before projecting.
在投影之前，确保投影仪对焦正确。
we need to replace the bulb in the ohp.
我们需要更换投影仪的灯泡。
the ohp screen needs to be cleaned.
投影仪屏幕需要清洁。
can you connect the laptop to the ohp?
你能把笔记本电脑连接到投影仪吗？
the conference room is equipped with a modern ohp.
会议室配备了现代化的投影仪。
write the key points on the ohp transparency.
在投影仪透明胶片上写下要点。
adjust the ohp angle for better visibility.
调整投影仪角度以获得更好的可见性。
the ohp makes it easy to annotate during lectures.
投影仪使讲座期间的注释变得容易。
store the ohp transparencies in this folder.
将投影仪透明胶片存放在这个文件夹中。
dim the lights when using the ohp.
使用投影仪时调暗灯光。
please turn on the ohp so we can start the presentation.
请打开投影仪，这样我们就可以开始演示了。
the teacher used the ohp to display the diagrams.
老师用投影仪来展示图表。
make sure the ohp is properly focused before projecting.
在投影之前，确保投影仪对焦正确。
we need to replace the bulb in the ohp.
我们需要更换投影仪的灯泡。
the ohp screen needs to be cleaned.
投影仪屏幕需要清洁。
can you connect the laptop to the ohp?
你能把笔记本电脑连接到投影仪吗？
the conference room is equipped with a modern ohp.
会议室配备了现代化的投影仪。
write the key points on the ohp transparency.
在投影仪透明胶片上写下要点。
adjust the ohp angle for better visibility.
调整投影仪角度以获得更好的可见性。
the ohp makes it easy to annotate during lectures.
投影仪使讲座期间的注释变得容易。
store the ohp transparencies in this folder.
将投影仪透明胶片存放在这个文件夹中。
dim the lights when using the ohp.
使用投影仪时调暗灯光。
探索常用高频词汇