请问widen one's sight and knowledge是什么意思?

请问widen one's sight and knowledge是什么意思? without one’s knowledge是什么意思? to one's knowledge sight of the sight of one's backsight of back 谁知道shareholder's knowledge是什么意思? expand one’s scope of knowledge students can widen their knowledge of the world through the wear one's hair loose请问是什么意思? 请问one's heart lifts是什么意思? It's known to all that reading -----one's knowledge 有无 to one's sight 这个词组呢? to go out of one's sight 求一个词