Halley's Comet is going to come back in 2061.哈雷彗星将于2061年回归。The value of the Halley family's stake has fallen by half since 1999.从1999年以来,Halley家族的股份缩水了一半.Earth crosses the orbit of Halley's Comet annually ...
Light colours provide an effective backdrop for pictures or a mirror.浅色是挂放图画或镜子很有效果的衬托。The mountains provided a dramatic backdrop for our picnic.群山如画，给我们的野餐平添景色。The large bay has a superb backdrop of mountains.大海湾背靠着庄严的山...
她注意到了安脸上露出了苦恼的表情。She was conscious of a troubled expression on Ann's face.他老是被一种叫人苦恼的不安情绪折磨着.He was afflicted always with a gnawing restlessness.他的自私是苦恼的根源.His selfishness was the root of trouble....
Chymosin used traditionally in cheese making is an aspartic protease extracted form abomasum of suckling calves.传统干酪加工中使用的凝乳酶是从犊牛皱胃中提取出的一种天冬氨酸蛋白酶.We watched the cow suckling her calves.我们看了奶牛如何给小牛喂奶。a cow suckling her ca...
本文报道了用菱锌矿作原料,制备硫酸锌的工艺条件.The technological conditions of the preparation of zinc sulfate with smithsonite as raw materials was reported.研究了以菱锌矿为原料通过酸浸、除杂、中和、沉淀、干燥制备碱式碳酸锌和活性氧化锌的生产工艺.A process for the production of basic zi...
他拿起一把铁锨，挖了个坑，将自己曾经珍爱的物品埋了起来。He took a shovel, dug a hole, and buried his once-prized possessions.我们在夜深人静的时候把它埋到了花园里。We buried it in the garden at dead of night.他被埋在废墟下面达好几个小时。He was buried under the debris for several ho...