英语翻译1.直到我们看了Discover才知道什麽叫做全球变暖2.既然大家都在,我们开始上课吧3.男孩藏在树后,以免他爸爸发现他4.只要没有反对意见,我们的会议就到这用从句的形式翻译

We did know what global warming was until we watched the Discovery channel.As everybody is here now, let's get started.The boy hid behine trees in order not to be found by his father.If nobody objects...