A thorough brushing helps to freshen up your mouth.彻底刷牙有助于口气清新。It helps them to unwind after a busy day at work.这有助于他们忙碌一天后放松自己。Art has real meaning when it helps people to understand themselves.当艺术有助于人们了解自身的时候才有真正的意义。...
结束了工具匠的学徒期以后，他当上了经理。After serving his apprenticeship as a toolmaker, he became a manager.他的学徒期已满.His apprenticeship was behind him.这是一段不同寻常的学徒期.It was an unusual apprenticeship....
Iron content in zinc - iron - phosphorus alloy electrodeposits was determined by means of spectrophotometry.采用分光光度法测量了锌 - 铁 - 磷合金镀层中的铁含量.Bright tin electrodeposits on copper wire are susceptible to tarnishing.铜线材经光亮镀锡后易产...