单独: alone, by oneself, on one's own...
截然不同: entirely different, different as black and white...
开采: to extract (ore or other resource from a mine), to exploit, to mine...
患者: patient, sufferer...
举世无双: unrivaled (idiom); world number one, unique, unequaled...
幸亏: fortunately, luckily...
印刷术: printing, printing technology...
赤道: equator (of the earth or astronomical body)...
攀登: to climb, to pull oneself up, to clamber, to scale, to forge ahead in the face of hardships and danger...
留神: to take care, to be careful...
