replace

1. V-T If one thing or person replaces another, the first is used or acts instead of the second. 代替; 取代

One species of tree replaces another as a forest ages. 随着森林老化，一种树会取代另一种树。

...the lawyer who replaced Robert as chairman of the company. …取代罗伯特成为公司主席的那位律师。

2. V-T If you replace one thing or person with another, you put something or someone else in their place to do their job. 用…代替; 用…替换

I clean out all the grease and replace it with oil so it works better in very low temperatures. 我清除掉了所有的油脂，以油替换，因此它在很低的温度下运转得更好。

3. V-T If you replace something that is broken, damaged, or lost, you get a new one to use instead. 换下 (坏的); 换上 (新的)

The shower that we put in a few years back has broken and we cannot afford to replace it. 我们几年前安装的淋浴器坏了，但没钱换新的。

4. V-T If you replace something, you put it back where it was before. 把…放回原处

Replace the caps on the bottles. 把瓶盖盖回到瓶子上。