多[duō] 基本解释：
新英汉大词典：
- 多[duō]
- 形容词- （数量大） many; much; more:
Please give me all the help you can.请你多多帮助。
More people mean a greater ferment of ideas, more enthusiasm and more energy.人多议论多，热气高，干劲大。
- （比原来的数目有所增加） more than the correct or required number; too many:You gave me two too many.你多给了我两个。
He's had a drop too much.他多喝了一点。
- （过分的; 不必要的） excesive; too much:oversensitive; oversuspicious; given to suspicion多疑
- 数词- （用在量词前表示概数）:
He's visited Dalian many times.他曾多次访问大连。
Iron has a variety of uses.铁有多种用处。
- 助词- （用在数量词后，表示有零头） more; over; odd:
more than four months; four months and more;四个多月
over fifty years old;50多岁
- 动词- （超出原有的或应有的数量或限度） exceed a number:
If we get one more person, we will become stronger.多一个人就多一分力量。
Irrigation is easy in the South because of the abundance of water.南方多水，利于灌溉。
- 名词- （姓氏） a surname:
Duo Jun多军
- 副词- （用在疑问句里，问程度、数量）:
How old is your daughter?你女儿多大了?
- （用在感叹句里，表示程度很高）:What a beautiful voice!多美的声音啊 !
Look how energetic she is!看她多精神!
- （表示任何一种程度）:Give me a piece of rope, any length will do.给我一根绳子，多长都行。
Use all your strength.有多大劲使多大劲。
- （相差程度大） much more; far more:much more difficult;难得多
The patient is much better today.病人今天好多了。
例句与用法：
Many diseases are caused by bacteria.
How much money I earn is none of your concern.
Just to satisfy my curiosity, how much did you pay for your car?
Scientists are recommending that people eat more fiber.
He has done many dishonorable things these years
He told us a hoary old joke that we'd all heard many times before.
I have many discs.
It takes a lot of labor to build a railway.