10, He could not find his fifty pence anywhere, and what is more, he could not get his arm out.

总结：what引导的插入语

what is more important 更重要的是

what is worse 更糟糕的是

what is more 更甚者

what is rare 更罕见的是

11，A crowd of people gathered round him and a lady rubbed his arm with soap and butter, but George was firmly stuck.

gather round 聚在周围新概念英语课文

rub his arm with sth. ... 用......涂抹他的手臂

firmly:坚定的，稳固的（加强语气）

be stuck 陷在（地方），动不了

动词原形是：stick，过去式及过去分词均是：stuck

e.g. His car was stuck in the mud. 他的车陷在泥里了。