Large, big, and great are all used to talk about size. In general, large is more formal than big, and great is more formal than large. Large and big are normally used to describe objects, but you can also use big to suggest that something is important or impressive. ...his influence over the big advertisers. You normally use great to emphasize the importance of someone or something. ...the great English architect, Inigo Jones. However, you can also use great to suggest that something is impressive because of its size. The great bird of prey was a dark smudge against the sun. You can use large or great, but not big, to describe amounts. ...a large amount of blood on the floor. ...the coming of tourists in great numbers. Both big and great can be used to emphasize the intensity of something, although great is more formal. It gives me great pleasure to welcome you... Most of them act like big fools.

large，big和great均用來談論大小。一般而言，large比big更爲正式，而great又比large更正式。large和big通常用來描述物體，但也可用big來表示某事物重要或令人印象深刻，例如，his influence over the big advertisers（他對大廣告客戶的影響）。great通常用來強調某人或某事物的重要性：the great English architect, Inigo Jones（英國偉大的建築師伊尼戈·瓊斯）。不過，也可用great來表示某物因爲巨大而令人印象深刻：The great bird of prey was a dark smudge against the sun（逆着太陽望去，那只巨大的猛禽只是天空中的一個黑影）。形容數量可用large和great，但不可用big，例如，a large amount of blood on the floor（地板上的一大灘血），the coming of tourists in great numbers（大量遊客的到來）。big和great均可用於強調強烈程度，但great更爲正式，例如，It gives me great pleasure to welcome you（能歡迎您的到來是我的莫大榮幸），Most of them act like big fools（他們中大多數人都表現得像大傻瓜）。