他发下守贞禁欲的誓言。He took a vow of chastity and celibacy.他违背了他安贫乐道的誓言。He had broken his vow of poverty.我结婚时许下誓言，并一直信守。I took my marriage vows and kept them....
他有急事求见经理.He asked to see the manager for something urgent.因有急事我不能去参加会议.Urgent business kept me from attending the meeting.遇上急事,谁也保不住迷头.No one can guarantee to keep his head in a tight spot....
The pistons are graphite-coated to reduce friction.活塞上涂了一层石墨以减小摩擦力。the coefficient of friction摩擦系数When Joan returned to work, the friction between them increased.琼回来工作后, 他们之间的摩擦加剧了....