A mallard suddenly took wing, rising steeply into the air with an angry squawk.一只绿头鸭突然飞起，愤怒地尖鸣一声直冲天空。Have you worked with Dr. Mallard long, Gerald?你跟着马拉德医生很久了吗, 杰拉德?Should I start taking photos, Doctor Mallard?我该开始拍照了吗, ...
My numbed feet, thawing out , ached painfully.这工夫,我才感觉到冻得麻木的双脚开始发痛.For a while the shock of Philippe's letter numbed her...菲利普来信的打击让她愣了好一会儿。I'm so numbed with shock that I can hardly think.我惊呆了，几乎无法思考。The cold ...
种子蕨类植物包括树状类型的植物.The seed ferns included treelike forms.配水树状管网优化布置属于典型的组合优化问题.Optimization of cooling pipe network layout is a typical combination optimal problem.依照树状结构, 分层次地组建这种8结点的超正方体.According to the tree structure, ...