Skin is naturally slightly acidic and has a pH of 5.5.皮肤具有天然弱酸性，pH值为5.5。A pH test measures the acidity or alkalinity of a substance.pH值测试可检测物质的酸碱度。Pure water is neutral with a pH of 7.纯水是中性的，酸碱度为7。...
The � � - PGA hydrogel swelled on the high pH region ( pH 9.0 ).在 pH 值 9.0时 具有较强的溶胀能力.The C level in acyanotic CHD with PH group correlated positively with pulmonary pressure ( P < 0.05 ).肺动脉压力与C水平呈显著正相关 ( P...
今晚我做完的时候刚过7点。It was just gone 7 o'clock this evening when I finished.不管你想聊些什么，我们今晚聊个够。Whatever you want to chat about, we'll do it tonight.我尽量赶上今晚去卡拉奇的航班。I'lltry to get on the flight down to Karachi tonigh...
The Colonel lifted the phone and dialed his superior.上校拿起电话，拨通了上司的号码。I must have dialed wrong.我一定是拨错号了.I stumbled into the telephone box and dialed 999.我跌跌撞撞地进了电话亭拨了999。...
In many cases, said COSATU no more than dumping grounds for children.南非总工会说,许多情况下学校“只不过把孩子堆在一起. ”COSATU denounced this as " a declaration of war "南非总工会指责祖马这是在 “ 宣战 ”...
You have only 100 words in which to sum up his speech.你只能用100字来概括他的讲话.I can't sum up his whole philosophy in one sentence.我无法用一句话来概括他的全部人生观.Will you please sum up the main ideas of this article?请把这篇文章的大意归纳一下....
An optimist sees an opportunity in every calamity; a pessimist sees a calamity in every opportunity.乐观者于一个灾难中看到一个希望，悲观者于一个希望中看到一个灾难。The frost last week was a great calamity to the citrus industry.上周的霜冻对柑橘种植业是一场大灾难.The ma...
莫利笑话我糟糕的方向感。Molly razzed me about my rotten sense of direction.我认为深层的问题在于教育、失业和糟糕的住房条件。I think that the underlying problem is education, unemployment and bad housing.这绝对是我吃过的最糟糕的食物。It was absolutely the worst food I have...