alternation

🇬🇧/ˌɔːltəˈneɪʃn/ 🇺🇸/ˌɔːltərˈneɪʃn/ 51六级
successive change from one condition or action to another and back again repeatedly 交替

noun [具体名词]交替,轮流,间隔

Did you see the alternation?
你们看到轮替了吗?

altern- alter, altern, ali=other, to change, 表示“其他的, 改变状态”alternation 交互,交错(alternate+ion)
单词造句: