黑暗: dark, darkly, darkness...
留心: to be careful, to pay attention to...
看中: to have a preference for, to fancy, to choose after consideration, to settle on...
建设: to build, to construct, construction, constructive...
试题: exam question, test topic...
称心如意: after one's heart (idiom); gratifying and satisfactory, everything one could wish...
功能: function, capability...
