立法，法律 vehice. any means in or by which someone travelsor somethingis carried or conveyed, a means of transport 车辆，交通工具，运载工具 regulatory a. havingthe purposeof controlling an activity or process,especially by rules 调整的，管制的，调节的 regulate V. to controlan activity or process,especially byrules;to make a machine work at a particular speed,temperature,etc. 有系统地管理，规定，调节，调整 Phrases and Expressions顺序朗读新短语 supply with供应nitrogen oxide氮氧化物 inert gas惰性气体chemical reaction 化学反应 acid rain酸雨derive from来自 greenhouse effect温室效应suffer from遭受（不幸的事情），患有（疾病 等) ozonelayer臭氧层due to由于，归因于 have an effect on 对有影响convertto 转换成 as well as以及，和take stepsto dosth.采取措施做某事 refer to…as把…称作exposure to暴露于，接触 a quantity of许多，大量play a role in在…-方面起作用 sulfurdioxide二氧化硫in addition此外，另外 carbon monoxide 一氧化碳meet a challenge 应对挑战立法，法律 vehicle n. any means in or by which someone travels or something is carried or conveyed; a means of transport 车辆，交通工具，运载工具 regulatory a. having the purpose of controlling an activity or process, especially by rules 调整的，管制的，调节的 regulate v. to control an activity or process, especially by rules; to make a machine work at a particular speed, temperature, etc. 有系统地管理，规定，调节，调整 Phrases and Expressions 顺序朗读新短语 supply with 供应 nitrogen oxide 氮氧化物 inert gas 惰性气体 chemical reaction 化学反应 acid rain 酸雨 derive from 来自 greenhouse effect 温室效应 suffer from 遭受（不幸的事情），患有（疾病 等） ozone layer 臭氧层 due to 由于，归因于 have an effect on 对……有影响 convert to 转换成 as well as 以及，和 take steps to do sth. 采取措施做某事 refer to ... as ... 把……称作 exposure to 暴露于，接触 a quantity of 许多，大量 play a role in 在……方面起作用 sulfur dioxide 二氧化硫 in addition 此外，另外 carbon monoxide 一氧化碳 meet a challenge 应对挑战