湿疹是一种常见的皮肤病，通常具遗传性。Eczema is a common skin complaint which often runs in families.这种产品看起来和点燃后都与常见的香烟没什么两样。The product looks and burns like a regular cigarette.15年的寿命对狗而言是比较常见的。A 15-year lifespan is not uncommon for a dog...
环己酮和过氧化物可用来化替过氧化环己酮.Cyclohexanone and peroxide may be used in place of cyclohexanone peroxide.己酮糖:一种六碳的酮糖.例如果糖.Ketohexose A ketose SUGAR with six carbon atoms , e . g . fructose.提出了环己酮在这类催化剂上双聚反应的机理.Reaction pathway of c...
An operator wearing earphone was sitting in the telephone exchange.戴耳机的接线员正坐在总机室里.No problem. Here is your earphone.没问题. 这是给您的耳机.Our goal: To be world - class earphone manufactory in coming 20 years.企业目标: 20年内跻身于世界 一流 耳机...
这次提升标志着她事业上的转折点。The promotion marked a turning point in her career.19世纪中叶标志着俄国历史的转折点。The middle decades of the 19th century marked a watershed in Russia's history.他就任教师工作是他一生的转折点.His induction as a teacher was a tur...