She's a tenacious woman. She never gives up.她是个坚毅的人，从不放弃。He has a tenacious memory.他有很强的记忆力.She is very tenacious and will work hard and long to achieve objectives.她是个锲而不舍的人，为了达到目标愿意长期苦干。...
Canals - some clean enough to sustain fish - wend their way through this charming cityscape.运河 – 有些清澈得足以养鱼–蜿蜒穿过这副迷人的城市景观.To provide bacteriological basis for curing infected root canals with sensitive drugs.为临床应用敏感药物治疗感染...