Вы искали: 鲜少停 (Китайский (упрощенный) - Английский)

如果您即将使用投影仪， 应该事先掌握操作方法。 确保所有的连接头都能够正常工作， 镜头和幕布也应该进行清洁。 如果您从来没有用过投影仪， 应该多练习几次。 当您自行练习的时候， 最好在每张幻灯片之间至少停五秒。 这样可以帮助您摆脱紧张的气氛， 也不必赶时间。 如果您需要在幻灯片中指向某些要点， 可以在显示屏幕上使用鼠标指针， 或者找一只激光笔直接在幕布上指点。 不过当桌子上摆满很多东西的时候， 这些东西很可能不知道滚到什么地方去了 。
if you are using an overhead projector, learn how to use it beforehand. make sure that the bulb works, that the spare bulb is still okay. clean the lens and display plates. if you are not used to working with projectors, practice. ensure that the projection screen itself is clean. it's probably best, when timing yourself, to allow for five seconds (count one thousand and one, one thousand and two....) to change each slide. that way you know you do n't have to rush. if you need to point at something on a slide, you can use a pointer and point at the display screen, find a laser pointer or put a pencil on the transparency itself. be warned, these tend to roll out of place when you nudge the table.