.common,usual和ordinary的區(qū)別
（1）common意為"普通的","平常的",指常見的,常常發(fā)生的,不足為奇的.如：
The birds are very common here.這些鳥在這兒很常見.
The common man in every country is anxious for world peace.
每個國家的老百姓都渴望世界和平.
Snow is common in cold countries.在寒冷的國家雪是常見的.
（2）usual意為"通常的","習(xí)慣性的",可用于一切頻繁發(fā)生的事情.如：
Tea is considered to be the usual drink in Britain.在英國,茶被視為一種習(xí)慣性的飲料.
He arrived later than usual.他到得比平常晚一些.
Are you coming home at the usual time?你準(zhǔn)備按往常的時間回家嗎?
Yes,I shall leave the office at the same time as usual.
是的,我將和平常一樣準(zhǔn)時離開辦公室.
My usual chair had been moved from its usual place.我平常用的椅子已從老地方移開了.
（3）ordinary意為"通常的","普通的",有"日常的","隨時都可以碰到的"含意,與common意思相近.如：
An ordinary workday is eight hours.一個工作日通常是八個小時.
It was a very ordinary day today.今天是很平常的一天.
He is a little man with ordinary looking.他是個個子矮小,相貌普通的人.
Tom Sawyer was an ordinary American boy who kept getting into trouble.
湯姆·索耶是個常常惹事生非的普普通通的美國男孩.