翻译以下短语并完成句子。

1) settle in

2)settle down

3)settle down to sth. / doing sth.

4) They moved the local people and________another place.

   他们把当地人迁移到别处定居。

5) Before we________discussing other things, I've a question to ask you.

   在我们开始讨论别的事情之前，我有个问题请教你一下。

6) They'd like to see their daughter________,get married, and have kids．

   他们很想看到女儿安定下来，结婚生子。

医院感染发生的危险因素有哪些？