《英文天天写》是沪江部落一档写作类节目，其目的在于提升大家的英语写作能力。每期节目主持人都会给出一个话题，积极参加的童鞋还会得到主持人的专业点评哦！想提高英语写作的童鞋千万不要错过哦！去沪江部落订阅本节目！

话题：

Writing: imagine a scenario or express your opinion
Combination
When two or more things are put into one, the result may be surprising. What things are combined together? What purpose does that achieve? How to people react to the combination?
This week's topic: Holding their breath, they hid behind the wall... (90-110 words)

Suggestions:
1) mixing two chemicals provide a product with completely different properties, as in a chemical equation
2) a combination lock securing a bicycle
3) less expensive to buy a combo meal, instead of buying the items in the set individually
4) combination skin: oily t-zone, drier cheeks
5) Instead of writing a scenario, feel free to comment on the story below.

范例1：

The time stamp at the corner of the toxicology report further confirmed his suspicion. The time indicated was at the break of dawn when he printed his pages. Looking at the toxicology, there were a lot of technical terms, but he was familiar with most of the listed chemical breakdown of the unknown substance being tested. They were strong neuro-suppressants. The surprising thing was the high dosage, much higher than what would normally be prescribed and be considered safe. There were also traces of neuro-stimulants. He found it strange that those chemicals would be used in combinations with each other.

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