They wash dishes by turns.

他们轮流洗碗碟。

The book is, by turns , funny and very sad.

这部书时而妙趣横生，时而悲悲戚戚。

Mary and Jane rode by turns .

玛丽与珍尼轮流骑。

He grew pale and red by turns.

他的脸一会儿红一会儿白。

She went hot and cold by turns.

她一阵发热，一阵发冷。