alternate

/ˈɔltɚˌneɪt/

v./adj. 輪流；交替的；替代的
- Every week the two hosts alternate, so each one presents the podcast twice a month. 兩位主持人每週輪流，所以每個人一個月主持兩次節目。

其他意思

v. 輪流, 交替

When you alternate two things, you keep using one then the other. When one thing alternates with another, the first regularly occurs after the other.
- Her aggressive moods alternated with gentle or more co-operative states
adj. 交替的, 間隔的

Alternate actions, events, or processes regularly occur after each other.
- They were streaked with alternate bands of colour.
n.

An alternate is a person or thing that replaces another, and can act or be used instead of them.[AM]
- In most jurisdictions, twelve jurors and two alternates are chosen

也出現在：

altern + ate輪流 + 動詞