VOA慢速英语:Experimental Zika Vaccine Clinical Testing Begins(翻译)

短语讲解：

1. It can also be passed through sexual contact.

pass through 通过; 经过; 经历
例句：A caterpillar must pass through the cocoon stage to become a butterfly.
毛毛虫必须经过茧的阶段才能变成蝴蝶。

2. If infected with the virus, women can give birth to babies with a severe condition known as microcephaly.

give birth to 生（孩子），生育; 引起
例句：Though a mother give Birth to nine sons, all nine will be different
一娘养九子九子九个心。

3. This week, U.S. officials announced that a number of people in the state of Florida have been infected.

a number of 一些; 许多的
例句：The vibrating object has executed a number of oscillations.
物体已经完成了许多次振动。