Over the past two million years, colder glacial periods have alternated with warmer interglacial periods.
在过去的200万年里，寒冷的冰期与较暖和的间冰期交替出现。
Then, as blazing sunshine alternated with drenching rains, the harsh, barren surfaces of the black rocks slowly began to soften.
然后，随着炽热的阳光和滂沱的大雨交替出现，黑色岩石粗糙而贫瘠的表面开始慢慢软化。
She alternated singing and dancing.
她一会儿唱歌，一会儿跳舞。
His parents alternated in looking after him.
他的父母轮流看护他。
Sunny weather alternated with rain.
天气晴雨相间。
Joy and grief alternated in my heart.
我心中悲喜交替。
Hope and fear alternated in my breast.
我忽而充满希望，忽而担心。
He alternated between hope and despair.
他时而充满希望，时而绝望。
The joys and pains of love are alternated.
爱情中的欢乐和痛苦是交替出现的。
The young man alternated singing and dancing.
那年轻人一会儿唱一会儿跳。
The little boy alternated playing and studying.
这个小男孩玩一会儿学一会儿。
He alternated between supporting me and opposing me.
他时而支持我，时而反对我。
Dan and Mike alternated washing the dishes every night.
丹和迈克每天晚上轮流洗碗。
He alternated between high spirits and low spirits.
他一会儿高兴，一会儿沮丧。
He alternated his character between father and son in the play.
翻译他在剧中轮流扮演父亲和儿子两个角色。
She alternated in watching the clock and staring at the telephone.
她一会儿看看钟，一会儿又盯着电话。
The study of heat balance rule in dune alternated with wetland area.
坨甸相间地区热量平衡规律研究。
The valetudinarian alternated two hours of work with one hour of rest.
那个体弱多病的人每工作两小时就要歇一小时。
This movie has three different endings that will be alternated every week.
这部片子有三个不同的结局每周随机播放。
Since then, I've alternated between going to a gym and working out at home.
此后，我有时去健身房有时在家健身。
This was when E3 still alternated between Atlanta and Los Angeles each year.
当时的E3还是在亚特兰大和洛杉矶轮流举办的。
We alternated houses together, and we knew each other's lives almost completely.
我们互相去对方家里做客，我们几乎完全知道对方的生活。
Each of these box-like structures alternated with an empty space, of exactly the same size.
每一个盒状结构交替留有一个空的空间，大小完全一样。
But when the games are alternated -- playing A twice and B twice for 100 times -- money is not lost.
然而，如果交替玩两个游戏--两次A、两次B，交替100次--那么不会输钱。
This year's weather, which constantly alternated between rain and heat, has ruined lots of crops.
今年的天气，要么就下雨，要么就持续高温，毁了不少农作物。
The symposia were held in various places in China, but usually alternated between north and south.
这些学术讨论会一般在中国各地举行，但通常是交替地在南北两地举行。
That stress came from unpredictable periods of light alternated with darkness, lasting anytime from three to 24 hours.
应激产生自不定期明暗交替的光照，持续时间从3个小时到24个小时不等。
That stress came from unpredictable periods of light alternated with darkness, lasting anytime from three to 24 hours.
应激产生自不定期明暗交替的光照，持续时间从3个小时到24个小时不等。
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