He was a man of fifty, a sort of sea–wolf, with big eyes, a complexion of oxidised copper, red hair and thick neck, and a growling voice.

这人有五十岁，是个久经海上风波的老水手，说话挺冲，看样子是个不大好交往的人。他圆睁着两只大眼睛，面如青铜，头发棕红，身材魁梧，一点也不象人们在社会上经常接触到的人。

It's not difficult, it's just a bit fiddly, there are things to watch for, it oxidises very quickly, so as you're prepping it, rubbing it with lemon is wise.

这并不难，只是有点繁琐，有些地方需要注意，它氧化得很快，所以在准备的时候，用柠檬摩擦它就很明智。

When zinc is exposed to the acid in the lemon juice, the acid oxidises, or removes electrons from the zinc, and the resulting positively charged zinc ions move in the solution.

当锌暴露于柠檬汁的酸的时候，酸就会氧化，或者是把锌里面的电子移除，所以带正电荷的锌离子就会在溶液中移动。

Mars is filled with iron, and its oxidised iron, basically rust, turns into dust particles and in addition to the beautiful dunes, you have this red atmosphere sometime red all over the surface of the planet.

火星堆满了铁和氧化铁，基本上生了锈，化为了尘埃颗粒，除了美丽的沙丘外，还有红色的大气层，有时行星的表面充满了红色。