颊窝毒蛇的毒牙是长的空心管子.The fangs of pit vipers are long, hollow tubes.只有四分之一的蛇具有毒液和毒牙.Venom and fangs are found in only a quarter of all known snakes.在蛇的进化史上,毒牙的出现是新的进步.A more recent advance in the evolutionary story of snakes i...
玛蒂尔达在一块有花鸟图案的祭坛布上刺绣。Matilda was embroidering an altar cloth covered with flowers and birds.你可以用刺绣来作进一步的装饰。You can use embroidery stitches for further decoration.她学了缝纫、编织和刺绣。She learned sewing, knitting and embroidery....
The prisoner has walked his chalks , and is off to London.那囚犯逃走了, 逃到伦敦去了.A white chalk chalks white on a black blackboard.一根白色的粉笔在黑色的黑板上写白字.His steed was by chalks the best.他的马是最好的....
导线的两端联接到裂环整流器.The two ends of the wire are connected to a split - ring commutator.同步 低频 整流器与推挽整流器相似.The synchronized low - frequency rectifier is similar to a push - pull rectifier.低谐波 、 高功率因数 、 带有滤波器件的整流器.Low harmonics,...
He exerted considerable influence on the thinking of the scientific community on these issues.他极大地影响了科学界对这些问题的看法。The romantic impulse , it has been seen, exerted a contrary pull.我们在前面说过, 浪漫主义在向相反的方向发展.I regard Beethoven ...