It was built by working men and women who dug intowhat little savings they had to give $5 and $10 and $20 to the cause.dug into 只想问dug into

问题描述:

It was built by working men and women who dug into
what little savings they had to give $5 and $10 and $20 to the cause.
dug into
只想问dug into

(It was built by working men and women) who dug into what little savings they had to give $5 and $10 and $20 to the cause. 括号里的

dug into本意是挖掘的意思.在这里可能是拿出,搜刮出的意思
(it替代前文提到的观点或事物)...是由劳动男工和女工拿出有限的积蓄,他们不得不掏出五美元,十美元,或二十美元去支持这项事业.
希望对你有帮助.