○  英语演讲教程:developing the speech text  ○

i just want to outline for you what i experienced in using this new drug.

i shall not go over all these explanations. my time is running short. so i'’11 be brief.

it is sufficient to say that these experiments were poorly designed and without controls.

v. repairing a slip of tone

the first of such experiments began in 2000, rather than 1999.

may i have the lights, i mean the slides.

the temperature increased, i shall say decreased.

the population is 13 million, sorry, 31 million.

the exchange rate dropped from 2.5 to 1.8, i beg your pardon, 1.9.

as you can see from the first row, excuse me, the second row, that the output increased two fold.

vi. expressions concerning audio-visual aids

could we have the lights off? and the first slide, please.

lights off, first slide, please.

dim the lights, and first s

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