剑桥的

The author thinks that Beethoven piano sonata "dramaticism" has incisive social roots and ideological root-cause , excavates in depth in very, unique , being worth it on technique of expression.

笔者认为贝多芬钢琴奏鸣曲的"戏剧性"具有深刻的社会根源和思想根源，在表现手法上十分独特，值得深入挖掘。

The workers decided to down tools until the boss met their demands.

工人们决定一直罢工到答应他们的要求为止。