:difficult的意思什么？difficult的反义词近义词是什么？

　　8. In the past this process of transition has often proven difficult.

　　过去这一过渡过程常常很艰难。

　　9. Her aggressiveness made it difficult for him to explain his own feelings.

　　她咄咄逼人的态度让他难以解释自己的感情。

　　10. The Philharmonia played this staggeringly difficult music superlatively well.

　　爱乐乐团精彩演绎了这首高难度乐曲。

　　11. She was finding it increasingly difficult to get about.

　　她发现出去走动越来越困难了。

　　12. Under the shaded light her expression was difficult to read.

　　她的表情隐在阴影中，很难读懂。