By nature; essentially
本質上；實質的
He is in essence a reclusive sort.他本質上具有一種隱士的氣質
He is in essence a reclusive sort.
他本質上具有一種隱士的氣質
Of the greatest importance; crucial
極其重要的：極其重要的；決定性的
Time is of the essence.時間就是生命
Time is of the essence.
時間就是生命
