形容词交替的; 轮流的; 间隔的; 代替的
不及物动词交替; 轮流
及物动词使交替; 使轮流
名词〈美〉（委员）代理人; 候补者; 替换物
形容词
1. They saw each other on alternate Sundays.
他们每隔一个星期天相会一次。
2. She works on alternate days.
她隔日工作。
及物动词
1. alternate
1. His life seems very dull and alternates between work and sleep.
他的生活似乎很枯燥，就是工作完了睡觉，睡完觉又工作。
不及物动词
1. For the next few days he alternated between hope and fear.
其后几天中他时而满怀希望，时而充满恐惧。