Manned submersibles, like spaceships, must maintain living conditions in an unnatural environment.载人的潜水器与宇宙飞船一样, 必须在非自然的环境下保持生存条件.You have to zap the invading spaceships to get points.(玩电动玩具等)你必须干掉入侵的太空船才能得分.Spaceships m...
In the final analysis, most of life's joys are transitory.归根结底, 尘世间的欢乐大多是过眼烟云,转瞬即逝.One can never learn all there is to know about cooking, and that is one of the joys of being a chef...钻研烹饪之道是永无止境的，这也是当厨师的乐趣之一。Money...
Objectives To observe how cere spore bacilli resulted in swallowing infection.目的:观察蜡样芽胞杆菌感染途径.A spore can quickly spread and form a mould.一个孢子能迅速蔓延并形成霉。Legionellae are aerobic, non - spore formingrod - shaped , typically...