He left two hours ago and he should be there by now.
他是两小时前离开的，到现在应该已经到那里了。
He left two hours ago. He must have arrived home.
他两个小时前就走了。他一定到家了。
飞机两小时前起飞。
他两个小时以前离开的。
They must have arrived at the airport by now because they left two hours ago.
他们一定到机场了，因为他们两个小时以前就出发了。
They must have arrived at the airport by now because they left two hours ago.
他们一定到机场了，因为他们两个小时以前就出发了。
应用推荐