正象

• just as
• erect(ing) image
• positive picture
• positive image
• positive pattern

例句

1. 情侣靠爱情生活，正象云雀靠韭葱生活一样。
   Lovers live by love, as larks live by leeks.
2. 正象双凸透镜可以放大那样，双凹透镜也可以缩小。
   Just as a double convex lens enlarges, so a double concave lens reduces.
3. 正象水能够支承船那样，空气也能够支承气球。
   So air supports a balloon just as water does a ship.

短语

• 正如
• 如下