1.in danger of 有危險
例句:Britain's university system is in danger of falling apart at the seams.
英國的大學體系面臨分崩離析的危險 。
2.die out 滅絕
例句:How did the dinosaurs die out?
恐龍是如何滅絕的?
3.ethnic identity 種族認同
例句:It also teaches the young about their ethnic identity.
它也教導年輕人對他們的種族身份 。
4.best-known 著名的
例句:Van Gogh is probably the best-known painter in the world.
凡·高可能是世界上最知名的畫家 。