accumulate a wealth of data的用法和样例：
- He has accumulated a wealth of experience in his work.
- If you keep on collection, in time you'll have a wealth of data.
只要你注意搜集, 久而久之, 资料就丰富了。
- If you keep on collecting, in time you'll have a wealth of data.
- China has a wealth of coal, iron and other minerals.