我们一点也不知道他已往的历史.We know nothing of his past.新年是人们辞别已往, 欢迎新的一年的时候.It's a time to the old year, and to the new year.一味想着 已往 的过失是没用的.It is useless to muse on [ upon ] past errors ....
Explain why barium forms peroxide but beryllium does not.解释为什么钡能形成过氧化物而铍则不能。However the toxic properties of beryllium limit its application.然而铍的毒性限制了它的作用.Toxicity problem in manufacturing and storage might be alleviated ...
This interesting and charming creature is unique to Borneo.这种有趣迷人的动物是婆罗洲独有的。The colonel saw active service in Borneo and was awarded the General Service Medal.战争期间上校在婆罗洲服役并被授予一般服役奖章。Look at Borneo , where you instantly t...
The builders have perched a light concrete dome on eight slender columns.建筑工人在8根细柱上架起轻巧的混凝土穹顶。Your decision must be translated into specific, concrete actions.你的决定必须转化为具体明确的行动。The hot liquid splashed down on the concrete...