Where Euclid unconsciously assumed the infinitude of straight lines.欧几里得不自觉地假定了直线的无限性."I was very unsure of myself after the divorce," she says, unconsciously sweeping back the curls from her forehead.“离婚之后我变得非常不自信,”她边说边...
很多书现在都用盲文印.Books are now printed in braille.现在还有用布莱叶盲文印的书.There are books printed in braille.他懂得聋哑人交流用的“盲文”.He knew the finger alphabet, whereby the deaf and dumb communicate....