1·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。
2·Tuned to different frequencies or alternated, the result would be resistance of varying degrees, including varying textural feeling.
调节到不同的频率或是交替使用，产生反馈的程度也不同，还有不同的触摸质感可供选择。
3·All four dengue virus (DENV) serotypes were permanently in circulation, though the predominant serotype has alternated between DENV-3 and DENV-2 since 2000.
尽管2000年之后主导血清型在DENV - 3和DENV - 2之间交替，但是全部四种登革热病毒血清型一直在循环着。
4·They found that scattered neurons throughout the rats' brains gradually alternated between periods of activity and inactivity - a pattern associated with deep sleep, not wakefulness.
研究人员发现老鼠大脑里不同区的神经元在活动和不活动间逐渐交替，而这种模式并不是清醒状态下应该有的，而是深睡眠下的状态。
5·In the past 2m years the temperature has gone up and down like a yo-yo as ice ages have alternated with warmer interglacial periods.
在过去20年里，气温起伏就像我们童年玩的溜溜球那样，时高时低，一如地球上寒冷的冰川期和温暖的间冰川期不断地轮换交替。
1·Dan and Mike alternated washing the dishes every night.
丹和迈克每天晚上轮流洗碗。
2·The men alternated leading and lying on their backs and kicking.
所有人轮流领游和倚靠在别人背上蹬划。
3·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。
4·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。