例句：
A measure of technical knowledge is desirable in this job.
做這項工作最好多懂一些技術知識。
He has a wide knowledge of painting and music.
他在繪畫和音樂方面知識淵博。
There is a lack of knowledge about the tax system.
大家對稅制缺乏了解。
For years we had little knowledge of what life was like inside China.
以往很多年我們對于中國國內的生活情況所知甚少。
He never made a will, to the best of my knowledge.
據我所知，他從未立過遺囑。