鼻干细胞有助于治疗婴幼儿听力问题

短语讲解：

1. They are abundant and they are multi-potent which means they can turn into different types of cells.

turn into (使)变成
例句：The old building was turned into a library.
这座旧房子被改作了图书馆。

2. The animals that received stem cells showed improved hearing compared to the sham, or placebo injected animals.

compare to与…相比
例句：The writer was compared to Shakespeare.
把这个作家与莎士比亚进行了比较。

3. The Sydney scientists believe that their study may contribute to the treatment of deaf children, greatly improving their quality of life.

contribute to促成
例句：Your suggestion has greatly contributed to the accomplishment of our work.
你的建议大大地促进了我们工作的完成。

4. So far, findings are proving positive, but it is still expected to take at least ten years before trials will be able to be conducted on children.

be expected to预计
例句：Commercial activity is expected to intensify towards Christmas.
预计临近圣诞节商贸活动会逐渐频繁。