it is our duty to do
it is our duty to do
It.is.our.duty.to.try.our.best.to.deal
it is our duty to distribute to the society翻译
It is our duty to protect the environment
it is our duty to protect the environment.
It is our duty to _(study) hard.
It is our duty to keep our classroom clean and tidy.中的It《our
It is our duty to keep our classroom clean and tidy.中 our du
As yong adults,it is our duty to try our best to deal with e
As young adults,it is our duty to try our best to deal each
As young adults,it is our duty to try our best to deal with
翻译:It is our duty to try our best to deal with each challeng