可以考虑利用一个活动挂图，投影仪或者一个黑板。
Consider using a flip chart, overhead projector or a blackboard.
面对观众讲话，而不是对着你的教具，如活动挂图或者投影。
Speak to the audience... NOT to the visual AIDS, such as flip charts or overheads.
面对观众讲话，而不是对着你的教具，如活动挂图或者投影。
Speak to the audience... NOT to the visual AIDS, such as flip charts or overheads.
应用推荐