1. My father died from "the poor man's friend", pneumonia, one hard winter when his lung illnesses had left him low.
    肺病把我父亲折磨得虚弱不堪, 一个严冬，他死于被叫做"穷人的朋友"的疾病——肺炎。

2. “Balcony?” Max asked curiously, “No, I had a key.
    "阳台？"马克斯好奇地问， "不，我有钥匙。

3. Give her the key.
    把钥匙给她吧。

4. But they do underline the general principle that the relationship between elephant and mahout is the key to successful training.
    但强调了一项基本原则，象和驯象员之间的关系是驯象成功与否的关健。

5. Can I have the key to the front door, please?
    我能带上前门的钥匙吗？

6. (An estimated 15 percent of male long distance runners have low iron stores.)
    （估计有15%的男性长跑运动员铁离子储量低。）

7. Commitment among parents is a key ingredient in the Hyde mixture.
    在海德中学的综合教育中，父母的参与是一个关键的组成部分。

8. Roman physicians described the chills and fevers and recurring attacks of malaria, noting that it was most frequent in low, marshy areas.
    罗马时代的医生描述了疟疾患者的周期性寒热，指出它多发生在低洼沼泽地带。

9. Obviously Julie knew she was dealing with someone with low mental power. I didn't mind.
    显然，朱莉以为她是在与一位低能儿打交道。我也不在乎。

10. One: Recycling (回收利用) is the key.
    误区1：回收利用是关键