事实上，他找到了3个，其一是介体12基因(MED12)，它帮助基因从DAN转录至信使rna。
In fact, he found three. Mediator-12 (MED 12), which helps to transcribe genes from DNA into RNA messengers, was one.
我们的目的不是深入研究每一个工件(见参考资料)，而是向那些希望为其用户提供帮助的开发人员引介这些工件。
Our purpose is not to go into depth into each of these artifacts (see Resources), but rather to serve as a gentle introduction to developers wishing to get started in helping their users.
三种来自日本的协助犬——两只导盲犬、一只助听犬和两只介助犬将演示如何帮助残疾人。
Three types of assistance dogs from Japan: two guide dogs , a hearing dog and two mobility dogs , will show how they help disadvantaged people.
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