1.engine n.发动机，引擎；工具

Daimler built the riding car to test the engine.
戴姆勒组装骑式双轮车是为了测试发动机。

Create a google custom search engine.
创建自己的谷歌搜索引擎。

2.orb n.球，天体，圆形物

They make the largest orb webs, which often exceed three feet ( 1 metre) in diameter.
他们织出的最大球体网，直径往往超过3英尺（1米）。

The black, death star-like, orb is briefly engulfed in light from the sun, then flies off into space.
这颗像死星一样的黑色天体在被太阳光完全吞没之后，又迅速飞向太空。

3.visible a.看得见的；明显的

They have shorter or longer wavelengths than visible light.
他们较可见光有或长或短的波长。

The partial eclipse was visible only from space.
这种月偏食只能从太空里才能看得见。

4.marvelous a.引起惊异的；不可思议的

Kanerva's memory algorithm could do several marvelous things that parallel what our own minds can do.
卡内尔瓦的记忆算法能做一些可媲美于人类思维的不可思议的事情。

He was an outstanding chinese general as well as a marvelous writer.
他是一位杰出的中国将军，也是一位了不起的作家。