女王向阵亡将士纪念碑献了花圈。The Queen laid a wreath at the war memorial.在响亮的号角声中花圈被献在纪念碑前.A wreath was laid on the monument to a fanfare of trumpets.女王向阵亡将士纪念碑献了罂粟花圈.The Queen laid a poppy wreath at the war memorial....
在拿吃的之前，用热肥皂水把手好好地洗干净。Wash your hands thoroughly with hot soapy water before handling any food.把手位于车门之外。The handles stand proud of the doors of the car.我们把手探进一袋信件中抽取获奖者。We delved through a sackful of letters to draw the w...
我们用气相层析法来测定各种谷物的水分.We use gas chromatography for moisture determination in a number of grains.酶反应产物用硅胶柱层析法提取,可以得到高纯度的异槲皮甙.The purity of isoquercitrin was isolated with a gel column.提出了一种干柱层析法 分离提纯 试剂对氨基偶氮苯的新方法.A new meth...