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今天我們要學的詞是 leaps and bounds.
leaps and bounds 的意思是大踏步的、跨越式的發展。 While clean energy from the sun and wind is growing by leaps and bounds, fossil fuels still provide the vast majority of the world's energy. 盡管利用太陽能和風能等清潔能源迅猛發展，但全球絕大部分能源仍來自于化石燃料。
Technological innovations in smart phones grew in leaps and bounds in the early 2010s, with dramatic improvements in screen size, screen resolution, battery life, cameras and processor speed every year. 智能手機的技術創新在2010年代初迅猛發展，在屏幕尺寸、分辨率、電池壽命、自帶相機和處理器速度上每年都有顯著提高。
