英语翻译lt's our duty to ----- ----- the old and the young.care of?

英语翻译lt's our duty to ----- ----- the old and the young.care of? lt's one's duty to do sth 如何造句 it's our duty to protect our environment/是什么意思请问 it's our duty to help ____(protect)the environment it's our duty to fight___this kind of terrible disease. It's our duty to ____ _____ _______（保护环境） it's our duty ti distribute to the society it's our duty ti distribute to the society...翻译下.. 保护环境是我们的职责.英语翻译It's ( our ) duty to ( ) of the ( ).括号内不限词数~~~~~~~ It's on duty to keep our classroom clean 改为同义句_______ ________ our classroom clean is our duty. Waste paper should be throun every were,It's our duty to keep our city clean I think it's our duty to keep our environment clean and tidy. It's our duty to make our city much_____A.dirty B.clean C.dirtier D.cleaner Don't t_____ here and there.It's our duty to keep our school clean 英语翻译和这个词组:It's duty to do It's our duty to save all the people's lives here.如何翻译? It's our duty to help b___ people because they aren't able to see. It's our duty to help (b ) people because they aren't able to see it's our duty to get the work ----- A to finish B finishCfinishing Dfinished