Chileren should learn about the great accomplishments of their nation.
孩子们应该了解自己国家的伟大成就。
He did not conclude that Anna had misunderstood.
他没法断定安娜是否存在误解。
Yes, I see. How can they get rid of waste water in this way? What a terrible colour the sea is now! It looks as if our class won't be able to bathe at all.