press conference

n. meeting arranged by an important person to which news reporters are invited to listen to a statement or ask questions 记者招待会

technology

n. 技术

conclusion

n. decision of opinion reached by reasoning 结论

conclude

v.

reporter

v. person who gathers news for a newspaper, magazine, or radio or TV station 记者

compose

vt. make up, form 组成，构成

concrete

n. building material made by mixing cement with sand, small stones and water 混凝土

atmosphere

n. all the gasses round the earth; air in a place 大气;空气

carbon

n. 碳

monoxide

n. 一氧化物

deadly

a. causing death; likely to cause death 致命的

gas

n. 气体

survive

vi. remain alive; continue to live or exist 活下来;幸存

vt. remain alive after; live longer than 经历...后还活着;比...活得长

survival

n.

program

n. plan of what it to be done 计划

concern

vt. be of importance or interest to; have an effect on 涉及，关系到

oxygen

n. 氧，氧气

originally

ad. formerly 起初，原来

original

a.

hazard

n. danger

hover

vi. stay in or near one place in the air 盘旋

consolidated

a. untied; combined 联合的

consolidate

vt.

belt

n. area that has some special quality; zone (地)带

indicate

vt. show

indication

n.

pollute

vt. make (air, water, soil, etc.) dirty with manmade waste 污染

pollution

n.

unfit

a. not good enough; not suitable

particle

n. 粒子;微粒

emit

vt. send out 散发，射出

emission