他叫儿子不要乱弄电视机.He told his son not to mess with the TV set.请不要乱弄我的汽车发动机.Please don't tinker with my car engine.你今天要看到的只是大量的胡摆乱弄.All you're going to see is a lot of fiddling around....
Also known as Darwin's beetle, the Chilean stag's extraordinary mandibles help it attract a female mate.也叫做达尔文甲虫, 智利鹿角虫惊人的下颚帮助它吸引异性.They strip it with their mandibles and pack it into the pollen baskets on thei...
鱼的鳍就像水翼船艇的水翼.The fins of a fish act as hydrofoils.关键词: 二维水翼 、 重模式 、 由水面.Keywords: two - dimensional hydrofoil , double model, free surface.水翼艇在水面漂流.The hydro craft floated over the water....