alternation
🇺🇸
/ˌɔːltərˈneɪʃn/
🇬🇧
/ˌɔːltəˈneɪʃn/
two things taking turns in a regular pattern
The alternation of day and night is a natural cycle.
昼夜交替是一种自然循环。
switching between two things repeatedly
The alternation between happy and sad moods is common in her stories.
快乐和悲伤情绪的交替在她的故事中很常见。