at the most advanced position in a field
分野の最も進んだ位置にいること (bun'ya no mottomo susunda ichi ni iru koto)
"The lab is at the cutting edge of medical research."
"その研究所は医学研究の最前線にあります。" (sono kenkyūsho wa igaku kenkyū no **saizen-sen** ni arimasu)
feeling nervous or anxious
to gradually work on something to achieve a result
to work extremely hard
honest and legal; without deceit
to focus only on positive thoughts and energy
to feel relaxed and confident