○  英语演讲教程:talking during the break  ○

b: we used a kind of trick which turned out to be surprisingly successful. the trick was to use an optically active urea lattice which forms a diastereoisomeric pair when mixed with the material .to be solved.

a: i'm not familiar with the urea technology. i'd like to hear more...

b: may i have one of the leaflets?

a: by all means. here you are.

b: thank you.

a: i wonder if you could send me a publication copy of your paper when it's ready.

b: certainly, i’ll be glad to do so; may i have your home address?

a: of course. let me write it for you.

b: please put it in my notebook, if you don't mind.

a: please keep me informed of the progress of your work.

b: goodbye !

上一页  [1] [2] [3] [4] [5] [6] [7] [8] [9]