Big, large, and great are all used to talk about size. In general, large is more formal than big, and great is more formal than large. Big and large 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. Remember that great has several other meanings, when it does not refer to size, but to something that is remarkable, very good, or enjoyable.

big, large 和 great 都可以用來表示大小。總的來說，large 比 big 更爲正式，great 又比 large 更正式。big 和 large 一般用來形容物體，但是 big 也可以表示某物重要或令人印象深刻：his influence over the big advertisers（他對大廣告客戶的影響力）。great 通常用來強調某人或某物的重要性：the great English architect, Inigo Jones（英國偉大的建築師伊尼戈·瓊斯）。但是 great 也可以用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，那只巨大的猛禽呈一團黑影）。large 和 great 可以用來形容數量，而 big 則不可以：a large amount of blood on the floor（地板上的一大攤血），the coming of tourists in great numbers（大量湧來的遊客）。big 和 great 都可以用來強調強烈程度，但 great 更加正式：It gives me great pleasure to welcome you（很榮幸能迎接您的到來），Most of them act like big fools（他們中多數人都表現得跟大傻瓜似的）。注意 great 還有其他意義，不僅用來描述大小，還可以用來表示某物不同尋常、出色或令人愉快。