您要查找的是不是：
- Sunny weather alternated with rain. 天气晴雨相间。
- He alternated between high spirits and low spirits. 他一会儿高兴，一会儿沮丧。
- Rainy days alternated with dry ones. 雨天与晴天交替更迭。
- alternated propagation 交替繁殖
- The sun sometimes spoils the propagation of radio waves. 太阳有时会影响无线电波的传播。
- For the next few days he alternated between hope and fear. 其後几天中他时而满怀希望,时而充满恐惧。
- Emission and propagation of energy in the form of rays or waves. 发射以光线或波的形式发出和传播能量
- She alternated between hope and despair. 她时而充满希望，时而绝望。
- She alternated singing and dancing. 她一会儿唱歌，一会儿跳舞。
- The propagation of animals or plants. 动物的饲养，植物的培植
- Reproduction and spread; propagation. 复制和散布；繁殖
- Committee on Propagation of the Tradition! '优良传统发扬光大委员会'！
- He alternated kindness with cruelty. 他恩威并重。
- Crack propagation usually begins slowly. 裂纹的增长常常是开始缓慢。
- Rose propagation has a long and rich history. 玫瑰繁殖有着悠久的历史。
- Her mood alternated between happiness and despair. 她的心情一会儿高兴一会儿绝望。
- It may take some time for DNS propagation to occur. 等待DNS传播可能需要一段时间。
- The phenomenon is called anomalous propagation. 这种现象被称为异常传播。
- His moods alternated between happiness and gloom. 他的情绪时而快乐,时而忧郁。
- The sentries alternated their watch. 哨兵轮流站岗。
