2 . it is believed that...
人们相信,在我们的共同努力下,未来我们可以拥有更清洁的海洋。
We feel
4 . “It is clear,” he said, “that there is only one way to convince you. We must conduct an experiment.”(英译汉)
5 . It’s strange that we try to sleep with no pressure against our back, but the unusual beds don’t bother us anymore. (英译汉)
6 . 避免讨论更容易,但冒险讨论最终可能会带来更好的结果。