①These new windows have lightened the room considerably.

題目：

①These new windows have lightened the room considerably.
其中的considerably是什麼意思?
②lighten a burden和 lighten sb's duties 中的lighten能否用 relieve替換?

解答：

1.considerably /kən'sidərəbli/譯爲 相當,非常,頗
considerably 是副詞(adverb)在這裡修飾動詞lighten(ed) 表程度
These new windows have lightened the room considerably.
譯爲：這些新的窗戶顯得房間亮多了.

2.(唔 lighten 和burden之間一般是不加不定冠詞a的?)
relieve the burden減輕負擔 是可以的
如 relieve the financial burden減輕財政負擔
關於relieve有一個固定詞組是：relieve sb of sth
所以 減輕某人的責任可以是：relieve sb of duties
類似的還有：relievesbof pain 緩解某人痛痛
relieve sb of his post 解除職務 等