legwork
leg work |ˈlegˌwərk ˈlɛɡˌwərk | ▶noun work that involves much traveling to collect information, esp. when such work is difficult but boring.
leg |work |ˈlɛgwəːk | ▶noun [ mass noun ] work that involves much travelling about to collect information, especially when such work is difficult but boring.
l é g w ò rk 名詞 U (取材など )足で稼ぐ仕事 [調査 ].