天天要开心哦
The laws and regulations should be observed.The demands should be satisfied.The pollutions should be prevented.The improvemnets should be done continuously.It is the main taskes to be preventive.The safety comes first.
yuyanyanbobo
英语阅读one day in February of 1860,Abraham Lincolnwas invited to.give aspeech in Brooklyn,New York.答案
maggie800315
参考如下: 遵守法规 ovserve laws and regulations满足要求 meet the requirements预防污染 take precautions against pollutions 持续改进 make continuous improvement预防为主,安全第一 put prevention and safety first. 百度教育团队【海纳百川团】为您解答