摄影师抓拍到了简不经意的瞬间。The photographers managed to capture Jane in an unguarded moment.他说，士兵们必须要在开火之前作出瞬间的决定。Soldiers had to make split-second decisions before opening fire, he said.他拍的照片时机掌握完美，记录下了动人的快乐瞬间。His photo is a wonder...
Bindweed ran up the stems of the corn.旋花缠绕着玉米杆往上长.The flexible twining or climbing stem of certain plants, such as the hop, woodbine, or bindweed.细长柔韧的枝或嫩条(尤指柳或一些藤茎植物), 用于枝编工艺....
The group notes that swallowing fluoridated toothpaste can cause problems.研究院提醒说把含氟牙膏吞下去会产生一些问题.Conclusion Fluoride bioavailability in fluoridated milk is still high and sufficient.结论氟化牛奶中氟的生物利用率是足够高的.Results Fluoridated...
In many organisms the male and female gametes are different.很多生物体中雄配子与雌配子是不同的.Such similar - appearing gametes are called isogametes.这种外形相似的配子称为同形配子.It involves , in effect , immunizing mosquitoes against gametes, the se...