【英语时差8,16】怎样能让宝宝睡着？（上）

 Parents of young infants know just how rare and valuable uninterrupted sleep can be. As it turns out, the timing¹ of breast milk production may help play a role in facilitating sleeping in an infant. Some mothers express breast milk during the day and save it for bottle-feeding their infants at night. This strategy allows fathers or other carers to help with the night-time feedings, and can make late night feeding quicker and easier for the mothers. However, the plan may actually result in a more sleepless² night for infants and their parents. It turns out that not all breast milk is the same. Breast milk is composed, in part, of compounds called nucleotides--the building blocks of DNA³. Breast milk contains many types of nucleotides, thought to be important for tissue development in growing infants.

1 timing   

n.时间安排，时间选择

参考例句：

• The timing of the meeting is not convenient.会议的时间安排不合适。
• The timing of our statement is very opportune.我们发表声明选择的时机很恰当。

2 sleepless   

adj.不睡眠的，睡不著的，不休息的

参考例句：

• The situation gave her many sleepless nights.这种情况害她一连好多天睡不好觉。
• One evening I heard a tale that rendered me sleepless for nights.一天晚上，我听说了一个传闻，把我搞得一连几夜都不能入睡。

3 DNA   

(缩)deoxyribonucleic acid 脱氧核糖核酸

参考例句：

• DNA is stored in the nucleus of a cell.脱氧核糖核酸储存于细胞的细胞核里。
• Gene mutations are alterations in the DNA code.基因突变是指DNA密码的改变。