Alternate:交替;轮流;候补者

Alternate:[英] [ˈɔːltə(r)neɪt] [美] [ˈɔltərˌneɪt]

动词读作 /'ɔːltəneɪt/,形容词和名词读作 /ɔːl'tɜːnət/。

adj.轮流的; 交替的; 间隔的; 代替的
vi.交替; 轮流
vt.使交替; 使轮流
n.〈美〉(委员)代理人; 候补者; 替换物

Example:
代替者;候补者
An alternate is a person or thing that replaces another, and can act or be used instead of them

Day and night alternate.
昼夜更替。

2. Farmers usually alternate their crops.
农民通常实行轮种。

3. He and I clean our room on alternate days.
我和他隔日轮流打扫我们的房间。

4. Night and day alternate.
昼夜交替。

5. That was a week of alternate rain and sunshine.
那是晴雨天交替的一周。

6. This is an alternate plan.
这是一个替代计划。

7. We had a week of alternate rain and sunshine.
天忽晴忽雨,已有一个星期。

8. We must alternate work with rest.
我们要劳逸结合。

9. Wet days alternate with fine days.
雨天和晴天相间而来。