惊喜两字已经不足以形容这只鬣鳞蜥了.With an iguana, you really don't have to say surprise.成年雄狮看起来颇有王者风范, 飘动的鬣毛勾勒出它们的面部轮廓.JB : Adult male lions look regal, with manes framing their faces.JB: 成年雄狮看起来颇有王者风范, 飘动的鬣毛勾勒出它们的面部轮廓.JB : Adult m...
Leonard jumped in his car and started backtracking.伦纳德跳进车里，开始原路折返。Some backtracking is probably inevitable.有时改变决定可能是不可避免的。The backtracking mechanism is an important facility for programming in logic.回溯机制是逻辑程序设计的重要设施.Leon...
Acceleration and velocity are both vectors.加速度和速度都是矢量。the velocity of light光速Einstein's theory links energy with mass and velocity of light.爱因斯坦的理论把能量同质量和光速联系起来....