Encara no tenim significats per a "speak extemporaneously".
1Anyway, Don shifted gears and began speaking extemporaneously, without questions or prompting, which was sort of refreshing.
2Dr. -- , apractitionerof medicine and a bishop in this Church, spoke extemporaneously in our language.
3She spoke extemporaneously, and "brought down the house".
4He generally spoke extemporaneously, on the spur of the occasion, and what he said came warm from the heart.
5Some said that he spoke extemporaneously, but by now Lincoln never approached even the possibility of such a speech without careful preparation.