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1.hazardous adj.冒险的；有危险的
Saunas can be hazardous if misused. Avoid a big meal beforehand.
洗桑拿浴如果方法不当会有危险，浴前切忌饱食。
2.toxic adj.有毒的；中毒的
Toxic waste could endanger lives and poison fish.
有毒废物可能危及生命，毒死鱼类。
3.generally adv.一般地，通常
Girls generally reach sexual maturity two years earlier than boys.
通常女孩性发育成熟要比男孩早两年。
4.emission n.排放，辐射；排放物
The emission of gases such as carbon dioxide should be stabilised at their present level.
二氧化碳等气体的排放应该稳定在当前水平。
5.alleviate vt.减轻，缓和
Nowadays, a great deal can be done to alleviate back pain.
如今，减轻背部疼痛可以有许多方法。
6.douse vt.浇水在…上
Men came with buckets of water and began to douse the flames.
人们提来一桶桶水灭火。
